For #3074 - Adds Crash reporting UI

app/src/main/java/org/mozilla/focus/fragment/BrowserFragment.kt

@@ -673,6 +673,24 @@ class BrowserFragment : WebFragment(), LifecycleObserver, View.OnClickListener,
         }
     }
 
+    internal fun showCrashReporter(crash: Crash) {
+        val fragmentManager = requireActivity().supportFragmentManager
+
+        Log.e("crash:", crash.toString())
+        if (fragmentManager.findFragmentByTag(CrashReporterFragment.FRAGMENT_TAG) != null) {
+            // We are already displaying the crash reporter
+            // No need to show another one.
+            return
+        }
+
+        val crashReporterFragment = CrashReporterFragment.create()
+
+        fragmentManager
+                .beginTransaction()
+                .add(R.id.container, crashReporterFragment, CrashReporterFragment.FRAGMENT_TAG)
+                .commit()
+    }
+
     internal fun showAddToHomescreenDialog(url: String, title: String) {
         val fragmentManager = fragmentManager
 
@@ -1369,6 +1387,8 @@ class BrowserFragment : WebFragment(), LifecycleObserver, View.OnClickListener,
 
     fun handleTabCrash(crash: Crash) {
         Log.e("crashed!", crash.toString())
+        showCrashReporter(crash)
+
     }
 
     companion object {

app/src/main/java/org/mozilla/focus/fragment/CrashReporterFragment.kt

@@ -0,0 +1,27 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+package org.mozilla.focus.fragment
+
+import android.os.Bundle
+import android.support.v4.app.Fragment
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import org.mozilla.focus.R
+
+
+class CrashReporterFragment: Fragment() {
+    override fun onCreateView(
+            inflater: LayoutInflater,
+            container: ViewGroup?,
+            savedInstanceState: Bundle?
+    ): View? = inflater.inflate(R.layout.fragment_crash_reporter, container, false)
+
+    companion object {
+        val FRAGMENT_TAG = "crash-reporter"
+
+        fun create() = CrashReporterFragment()
+    }
+}