Add API to route end of fling messages from WebLayerTreeView to InputHandler

cc/thread_proxy.cc

 // Copyright 2011 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 "cc/thread_proxy.h"
 
 #include "base/bind.h"
 #include "base/debug/trace_event.h"
 #include "cc/delay_based_time_source.h"
 #include "cc/draw_quad.h"
@@ skipping 413 matching lines @@
     return m_commitRequested;
 }
 
 void ThreadProxy::setNeedsRedrawOnImplThread()
 {
     DCHECK(isImplThread());
     TRACE_EVENT0("cc", "ThreadProxy::setNeedsRedrawOnImplThread");
     m_schedulerOnImplThread->setNeedsRedraw();
 }
 
+void ThreadProxy::mainThreadHasStoppedFlinging()
+{
+  if (m_inputHandlerOnImplThread.get())

[jamesr, 2012/12/13 21:39:05]

nits:

- just "if (m_inputHandlerOnImplThread)" will do the right thing
- this file is still WebKit style, so 4-space indents

+      m_inputHandlerOnImplThread->mainThreadHasStoppedFlinging();
+}
+
 void ThreadProxy::start()
 {
     DCHECK(isMainThread());
     DCHECK(Proxy::implThread());
     // Create LayerTreeHostImpl.
     DebugScopedSetMainThreadBlocked mainThreadBlocked(this);
     CompletionEvent completion;
     scoped_ptr<InputHandler> handler = m_layerTreeHost->createInputHandler();
     Proxy::implThread()->postTask(base::Bind(&ThreadProxy::initializeImplOnImplThread, base::Unretained(this), &completion, handler.release()));
     completion.wait();
@@ skipping 527 matching lines @@
 ThreadProxy::BeginFrameAndCommitState::BeginFrameAndCommitState()
     : memoryAllocationLimitBytes(0)
 {
 }
 
 ThreadProxy::BeginFrameAndCommitState::~BeginFrameAndCommitState()
 {
 }
 
 }  // namespace cc