Move initWithFactory: and startup: declarations to MTRDeviceControlle…

…r_Concrete.

initWithFactory: and startup: are only called from _startDeviceController:,
which was only being called with MTRDeviceController_Concrete instances.

Also fixes the argument type declarations for _startDeviceController: and
initializeController: to make the types compile-time enforced.

The MTRDeviceController implementations of initWithFactory: and startup: are now
obviously unreachable and can be removed.

Some static variables that are now unused have to be removed so the compiler
doesn't complain about them.

Further cleanup of now-unused things will follow in separate PRs.

src/darwin/Framework/CHIP/MTRDeviceControllerFactory.mm

@@ -461,7 +461,7 @@ - (void)stopControllerFactory
  * The provided controller is expected to have just been allocated and to not be
  * initialized yet.
  */
-- (MTRDeviceController * _Nullable)_startDeviceController:(MTRDeviceController *)controller
+- (MTRDeviceController * _Nullable)_startDeviceController:(MTRDeviceController_Concrete *)controller
                                             startupParams:(id)startupParams
                                             fabricChecker:(MTRDeviceControllerStartupParamsInternal * (^)(FabricTable * fabricTable,
                                                               MTRDeviceController * controller,
@@ -834,7 +834,7 @@ - (BOOL)findMatchingFabric:(FabricTable &)fabricTable
 // Returns nil on failure, the input controller on success.
 // If the provider has been initialized already, it is not considered as a failure.
 //
-- (MTRDeviceController * _Nullable)maybeInitializeOTAProvider:(MTRDeviceController * _Nonnull)controller
+- (MTRDeviceController_Concrete * _Nullable)maybeInitializeOTAProvider:(MTRDeviceController_Concrete * _Nonnull)controller
 {
     [self _assertCurrentQueueIsNotMatterQueue];
 
@@ -1156,7 +1156,7 @@ - (nullable MTRDeviceController *)_findPendingShutdownControllerWithOperationalC
     return nil;
 }
 
-- (nullable MTRDeviceController *)initializeController:(MTRDeviceController *)controller
+- (nullable MTRDeviceController *)initializeController:(MTRDeviceController_Concrete *)controller
                                         withParameters:(MTRDeviceControllerParameters *)parameters
                                                  error:(NSError * __autoreleasing *)error
 {

src/darwin/Framework/CHIP/MTRDeviceControllerFactory_Internal.h

@@ -30,6 +30,7 @@
 
 #import "MTRDefines_Internal.h"
 #import "MTRDeviceControllerFactory.h"
+#import "MTRDeviceController_Concrete.h"
 #import "MTROperationalBrowser.h"
 
 #include <credentials/FabricTable.h>
@@ -89,9 +90,9 @@ MTR_DIRECT_MEMBERS
                        completion:(void (^)(NSURL * _Nullable url, NSError * _Nullable error))completion;
 
 /**
- * Initialize an MTRDeviceController with the given parameters.
+ * Initialize an MTRDeviceController_Concrete with the given parameters.
  */
-- (nullable MTRDeviceController *)initializeController:(MTRDeviceController *)controller
+- (nullable MTRDeviceController *)initializeController:(MTRDeviceController_Concrete *)controller
                                         withParameters:(MTRDeviceControllerParameters *)parameters
                                                  error:(NSError * __autoreleasing *)error;
 

src/darwin/Framework/CHIP/MTRDeviceController_Concrete.h

@@ -20,10 +20,40 @@
 #import <Matter/MTRDefines.h>
 #import <Matter/MTRDeviceController.h>
 
+#import "MTRDeviceControllerStartupParams_Internal.h"
+
 NS_ASSUME_NONNULL_BEGIN
 
 @interface MTRDeviceController_Concrete : MTRDeviceController
 
+/**
+ * Init a newly created controller.
+ *
+ * Only MTRDeviceControllerFactory should be calling this.
+ */
+- (nullable instancetype)initWithFactory:(MTRDeviceControllerFactory *)factory
+                                   queue:(dispatch_queue_t)queue
+                         storageDelegate:(id<MTRDeviceControllerStorageDelegate> _Nullable)storageDelegate
+                    storageDelegateQueue:(dispatch_queue_t _Nullable)storageDelegateQueue
+                     otaProviderDelegate:(id<MTROTAProviderDelegate> _Nullable)otaProviderDelegate
+                otaProviderDelegateQueue:(dispatch_queue_t _Nullable)otaProviderDelegateQueue
+                        uniqueIdentifier:(NSUUID *)uniqueIdentifier
+          concurrentSubscriptionPoolSize:(NSUInteger)concurrentSubscriptionPoolSize
+            storageBehaviorConfiguration:(MTRDeviceStorageBehaviorConfiguration *)storageBehaviorConfiguration
+                          startSuspended:(BOOL)startSuspended;
+
+/**
+ * Start a new controller.  Returns whether startup succeeded.  If this fails,
+ * it guarantees that it has called controllerShuttingDown on the
+ * MTRDeviceControllerFactory.
+ *
+ * The return value will always match [controller isRunning] for this
+ * controller.
+ *
+ * Only MTRDeviceControllerFactory should be calling this.
+ */
+- (BOOL)startup:(MTRDeviceControllerStartupParamsInternal *)startupParams;
+
 /**
  * Takes an assertion to keep the controller running. If `-[MTRDeviceController shutdown]` is called while an assertion
  * is held, the shutdown will be honored only after all assertions are released. Invoking this method multiple times increases

src/darwin/Framework/CHIP/MTRDeviceController_Concrete.mm

@@ -163,16 +163,16 @@ - (nullable instancetype)initWithParameters:(MTRDeviceControllerAbstractParamete
     return controller;
 }
 
-- (instancetype)initWithFactory:(MTRDeviceControllerFactory *)factory
-                             queue:(dispatch_queue_t)queue
-                   storageDelegate:(id<MTRDeviceControllerStorageDelegate> _Nullable)storageDelegate
-              storageDelegateQueue:(dispatch_queue_t _Nullable)storageDelegateQueue
-               otaProviderDelegate:(id<MTROTAProviderDelegate> _Nullable)otaProviderDelegate
-          otaProviderDelegateQueue:(dispatch_queue_t _Nullable)otaProviderDelegateQueue
-                  uniqueIdentifier:(NSUUID *)uniqueIdentifier
-    concurrentSubscriptionPoolSize:(NSUInteger)concurrentSubscriptionPoolSize
-      storageBehaviorConfiguration:(MTRDeviceStorageBehaviorConfiguration *)storageBehaviorConfiguration
-                    startSuspended:(BOOL)startSuspended
+- (nullable instancetype)initWithFactory:(MTRDeviceControllerFactory *)factory
+                                   queue:(dispatch_queue_t)queue
+                         storageDelegate:(id<MTRDeviceControllerStorageDelegate> _Nullable)storageDelegate
+                    storageDelegateQueue:(dispatch_queue_t _Nullable)storageDelegateQueue
+                     otaProviderDelegate:(id<MTROTAProviderDelegate> _Nullable)otaProviderDelegate
+                otaProviderDelegateQueue:(dispatch_queue_t _Nullable)otaProviderDelegateQueue
+                        uniqueIdentifier:(NSUUID *)uniqueIdentifier
+          concurrentSubscriptionPoolSize:(NSUInteger)concurrentSubscriptionPoolSize
+            storageBehaviorConfiguration:(MTRDeviceStorageBehaviorConfiguration *)storageBehaviorConfiguration
+                          startSuspended:(BOOL)startSuspended
 {
     if (self = [super initForSubclasses:startSuspended]) {
         // Make sure our storage is all set up to work as early as possible,

src/darwin/Framework/CHIP/MTRDeviceController_Internal.h

@@ -40,13 +40,11 @@
 #import <Matter/MTRP256KeypairBridge.h>
 
 #import <Matter/MTRDefines.h>
-#import <Matter/MTRDeviceControllerStartupParams.h>
 #import <Matter/MTRDeviceControllerStorageDelegate.h>
 #import <Matter/MTRDiagnosticLogsType.h>
 #import <Matter/MTROTAProviderDelegate.h>
 
 @class MTRDeviceControllerParameters;
-@class MTRDeviceControllerStartupParamsInternal;
 @class MTRDeviceControllerFactory;
 @class MTRDevice;
 @class MTRAsyncWorkQueue;
@@ -79,18 +77,6 @@ NS_ASSUME_NONNULL_BEGIN
 
 #pragma mark - MTRDeviceControllerFactory methods
 
-/**
- * Start a new controller.  Returns whether startup succeeded.  If this fails,
- * it guarantees that it has called controllerShuttingDown on the
- * MTRDeviceControllerFactory.
- *
- * The return value will always match [controller isRunning] for this
- * controller.
- *
- * Only MTRDeviceControllerFactory should be calling this.
- */
-- (BOOL)startup:(MTRDeviceControllerStartupParamsInternal *)startupParams;
-
 /**
  * Will return chip::kUndefinedFabricIndex if we do not have a fabric index.
  */
@@ -135,22 +121,6 @@ NS_ASSUME_NONNULL_BEGIN
  */
 @property (nonatomic, retain, nullable) NSData * rootPublicKey;
 
-/**
- * Init a newly created controller.
- *
- * Only MTRDeviceControllerFactory should be calling this.
- */
-- (instancetype)initWithFactory:(MTRDeviceControllerFactory *)factory
-                             queue:(dispatch_queue_t)queue
-                   storageDelegate:(id<MTRDeviceControllerStorageDelegate> _Nullable)storageDelegate
-              storageDelegateQueue:(dispatch_queue_t _Nullable)storageDelegateQueue
-               otaProviderDelegate:(id<MTROTAProviderDelegate> _Nullable)otaProviderDelegate
-          otaProviderDelegateQueue:(dispatch_queue_t _Nullable)otaProviderDelegateQueue
-                  uniqueIdentifier:(NSUUID *)uniqueIdentifier
-    concurrentSubscriptionPoolSize:(NSUInteger)concurrentSubscriptionPoolSize
-      storageBehaviorConfiguration:(MTRDeviceStorageBehaviorConfiguration *)storageBehaviorConfiguration
-                    startSuspended:(BOOL)startSuspended;
-
 /**
  * Check whether this controller is running on the given fabric, as represented
  * by the provided FabricTable and fabric index.  The provided fabric table may