Android: Remove WindowAndroidObserver::OnWillDestroyWindow()

content/browser/renderer_host/render_widget_host_view_android.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/renderer_host/render_widget_host_view_android.h"
 
 #include <android/bitmap.h>
 
 #include "base/android/sys_utils.h"
 #include "base/basictypes.h"
@@ skipping 1282 matching lines @@
 void RenderWidgetHostViewAndroid::OnCompositingDidCommit() {
   RunAckCallbacks();
 }
 
 void RenderWidgetHostViewAndroid::OnDetachCompositor() {
   DCHECK(content_view_core_);
   DCHECK(!using_synchronous_compositor_);
   RunAckCallbacks();
 }
 
-void RenderWidgetHostViewAndroid::OnWillDestroyWindow() {
-  // crbug.com/324341
-  // WindowAndroid and Compositor should outlive all WebContents.
-  NOTREACHED();
-  observing_root_window_ = false;
-}
-
 void RenderWidgetHostViewAndroid::OnVSync(base::TimeTicks frame_time,
                                           base::TimeDelta vsync_period) {
   TRACE_EVENT0("cc", "RenderWidgetHostViewAndroid::OnVSync");
   if (!host_)
     return;
 
   if (flush_input_requested_) {
     flush_input_requested_ = false;
     host_->FlushInput();
   }
@@ skipping 131 matching lines @@
   results->availableRect = display.work_area();
   results->deviceScaleFactor = display.device_scale_factor();
   results->orientationAngle = display.RotationAsDegree();
   gfx::DeviceDisplayInfo info;
   results->depth = info.GetBitsPerPixel();
   results->depthPerComponent = info.GetBitsPerComponent();
   results->isMonochrome = (results->depthPerComponent == 0);
 }
 
 } // namespace content