Fix crash when move on the edge of some phones like HUAWEI P9

Summary:
The app crashes because of `TouchEventCoalescingKeyHelper.getCoalescingKey` throwing an exception when move on the edge of some phones like HUAWEI P9. It's caused by that the down time differs from `ACTION_DOWN` to `ACTION_MOVE` which belongs to the same gesture when I touched on the edge of my HUAWEI P9. It seems a native bug of manufacturer. Related issue #11302.
```
java.lang.RuntimeException: Tried to get non-existent cookie
    at com.facebook.react.uimanager.events.TouchEventCoalescingKeyHelper.getCoalescingKey(TouchEventCoalescingKeyHelper.java:75)
    at com.facebook.react.uimanager.events.TouchEvent.init(TouchEvent.java:93)
    at com.facebook.react.uimanager.events.TouchEvent.obtain(TouchEvent.java:46)
    at com.facebook.react.uimanager.JSTouchDispatcher.handleTouchEvent(JSTouchDispatcher.java:118)
    at com.facebook.react.ReactRootView.dispatchJSTouchEvent(ReactRootView.java:158)
    at com.facebook.react.ReactRootView.onInterceptTouchEvent(ReactRootView.java:130)
    at android.view.Vie
Closes #12063

Differential Revision: D4779060

Pulled By: astreet

fbshipit-source-id: 5cf20084ff9081f2535ff9cb3b99d1d52c443f03

ReactAndroid/src/main/java/com/facebook/react/uimanager/JSTouchDispatcher.java

@@ -30,6 +30,7 @@ public class JSTouchDispatcher {
   private int mTargetTag = -1;
   private final float[] mTargetCoordinates = new float[2];
   private boolean mChildIsHandlingNativeGesture = false;
+  private long mGestureStartTime = TouchEvent.UNSET;
   private final ViewGroup mRootViewGroup;
   private final TouchEventCoalescingKeyHelper mTouchEventCoalescingKeyHelper =
     new TouchEventCoalescingKeyHelper();
@@ -72,6 +73,7 @@ public void handleTouchEvent(MotionEvent ev, EventDispatcher eventDispatcher) {
       // {@link #findTargetTagForTouch} to find react view ID that will be responsible for handling
       // this gesture
       mChildIsHandlingNativeGesture = false;
+      mGestureStartTime = ev.getEventTime();
       mTargetTag = TouchTargetHelper.findTargetTagAndCoordinatesForTouch(
         ev.getX(),
         ev.getY(),
@@ -83,6 +85,7 @@ public void handleTouchEvent(MotionEvent ev, EventDispatcher eventDispatcher) {
           mTargetTag,
           TouchEventType.START,
           ev,
+          mGestureStartTime,
           mTargetCoordinates[0],
           mTargetCoordinates[1],
           mTouchEventCoalescingKeyHelper));
@@ -105,17 +108,20 @@ public void handleTouchEvent(MotionEvent ev, EventDispatcher eventDispatcher) {
           mTargetTag,
           TouchEventType.END,
           ev,
+          mGestureStartTime,
           mTargetCoordinates[0],
           mTargetCoordinates[1],
           mTouchEventCoalescingKeyHelper));
       mTargetTag = -1;
+      mGestureStartTime = TouchEvent.UNSET;
     } else if (action == MotionEvent.ACTION_MOVE) {
       // Update pointer position for current gesture
       eventDispatcher.dispatchEvent(
         TouchEvent.obtain(
           mTargetTag,
           TouchEventType.MOVE,
           ev,
+          mGestureStartTime,
           mTargetCoordinates[0],
           mTargetCoordinates[1],
           mTouchEventCoalescingKeyHelper));
@@ -126,6 +132,7 @@ public void handleTouchEvent(MotionEvent ev, EventDispatcher eventDispatcher) {
           mTargetTag,
           TouchEventType.START,
           ev,
+          mGestureStartTime,
           mTargetCoordinates[0],
           mTargetCoordinates[1],
           mTouchEventCoalescingKeyHelper));
@@ -136,6 +143,7 @@ public void handleTouchEvent(MotionEvent ev, EventDispatcher eventDispatcher) {
           mTargetTag,
           TouchEventType.END,
           ev,
+          mGestureStartTime,
           mTargetCoordinates[0],
           mTargetCoordinates[1],
           mTouchEventCoalescingKeyHelper));
@@ -149,6 +157,7 @@ public void handleTouchEvent(MotionEvent ev, EventDispatcher eventDispatcher) {
         );
       }
       mTargetTag = -1;
+      mGestureStartTime = TouchEvent.UNSET;
     } else {
       FLog.w(
         ReactConstants.TAG,
@@ -176,6 +185,7 @@ private void dispatchCancelEvent(MotionEvent androidEvent, EventDispatcher event
         mTargetTag,
         TouchEventType.CANCEL,
         androidEvent,
+        mGestureStartTime,
         mTargetCoordinates[0],
         mTargetCoordinates[1],
         mTouchEventCoalescingKeyHelper));

ReactAndroid/src/main/java/com/facebook/react/uimanager/events/TouchEvent.java

@@ -15,6 +15,7 @@
 import android.view.MotionEvent;
 
 import com.facebook.infer.annotation.Assertions;
+import com.facebook.react.bridge.SoftAssertions;
 
 /**
  * An event representing the start, end or movement of a touch. Corresponds to a single
@@ -31,10 +32,13 @@ public class TouchEvent extends Event<TouchEvent> {
   private static final Pools.SynchronizedPool<TouchEvent> EVENTS_POOL =
       new Pools.SynchronizedPool<>(TOUCH_EVENTS_POOL_SIZE);
 
+  public static final long UNSET = Long.MIN_VALUE;
+
   public static TouchEvent obtain(
       int viewTag,
       TouchEventType touchEventType,
       MotionEvent motionEventToCopy,
+      long gestureStartTime,
       float viewX,
       float viewY,
       TouchEventCoalescingKeyHelper touchEventCoalescingKeyHelper) {
@@ -46,6 +50,7 @@ public static TouchEvent obtain(
       viewTag,
       touchEventType,
       motionEventToCopy,
+      gestureStartTime,
       viewX,
       viewY,
       touchEventCoalescingKeyHelper);
@@ -67,30 +72,33 @@ private void init(
       int viewTag,
       TouchEventType touchEventType,
       MotionEvent motionEventToCopy,
+      long gestureStartTime,
       float viewX,
       float viewY,
       TouchEventCoalescingKeyHelper touchEventCoalescingKeyHelper) {
     super.init(viewTag);
 
+    SoftAssertions.assertCondition(gestureStartTime != UNSET,
+        "Gesture start time must be initialized");
     short coalescingKey = 0;
     int action = (motionEventToCopy.getAction() & MotionEvent.ACTION_MASK);
     switch (action) {
       case MotionEvent.ACTION_DOWN:
-        touchEventCoalescingKeyHelper.addCoalescingKey(motionEventToCopy.getDownTime());
+        touchEventCoalescingKeyHelper.addCoalescingKey(gestureStartTime);
         break;
       case MotionEvent.ACTION_UP:
-        touchEventCoalescingKeyHelper.removeCoalescingKey(motionEventToCopy.getDownTime());
+        touchEventCoalescingKeyHelper.removeCoalescingKey(gestureStartTime);
         break;
       case MotionEvent.ACTION_POINTER_DOWN:
       case MotionEvent.ACTION_POINTER_UP:
-        touchEventCoalescingKeyHelper.incrementCoalescingKey(motionEventToCopy.getDownTime());
+        touchEventCoalescingKeyHelper.incrementCoalescingKey(gestureStartTime);
         break;
       case MotionEvent.ACTION_MOVE:
         coalescingKey =
-          touchEventCoalescingKeyHelper.getCoalescingKey(motionEventToCopy.getDownTime());
+          touchEventCoalescingKeyHelper.getCoalescingKey(gestureStartTime);
         break;
       case MotionEvent.ACTION_CANCEL:
-        touchEventCoalescingKeyHelper.removeCoalescingKey(motionEventToCopy.getDownTime());
+        touchEventCoalescingKeyHelper.removeCoalescingKey(gestureStartTime);
         break;
       default:
         throw new RuntimeException("Unhandled MotionEvent action: " + action);