Ensure LayerTreeHostImpl's current frame time is updated every frame

cc/test/layer_tree_test.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/test/layer_tree_test.h"
 
 #include "base/command_line.h"
 #include "cc/animation/animation.h"
 #include "cc/animation/animation_registrar.h"
 #include "cc/animation/layer_animation_controller.h"
@@ skipping 20 matching lines @@
 TestHooks::TestHooks() {}
 
 TestHooks::~TestHooks() {}
 
 bool TestHooks::PrepareToDrawOnThread(LayerTreeHostImpl* host_impl,
                                       LayerTreeHostImpl::FrameData* frame_data,
                                       bool result) {
   return true;
 }
 
-bool TestHooks::CanActivatePendingTree() {
+bool TestHooks::CanActivatePendingTree(LayerTreeHostImpl* host_impl) {
   return true;
 }
 
 // Adapts LayerTreeHostImpl for test. Runs real code, then invokes test hooks.
 class LayerTreeHostImplForTesting : public LayerTreeHostImpl {
  public:
   static scoped_ptr<LayerTreeHostImplForTesting> Create(
       TestHooks* test_hooks,
       const LayerTreeSettings& settings,
       LayerTreeHostImplClient* host_impl_client,
@@ skipping 54 matching lines @@
 
   virtual void OnSwapBuffersComplete() OVERRIDE {
     LayerTreeHostImpl::OnSwapBuffersComplete();
     test_hooks_->SwapBuffersCompleteOnThread(this);
   }
 
   virtual bool ActivatePendingTreeIfNeeded() OVERRIDE {
     if (!pending_tree())
       return false;
 
-    if (!test_hooks_->CanActivatePendingTree())
+    if (!test_hooks_->CanActivatePendingTree(this))
       return false;
 
     bool activated = LayerTreeHostImpl::ActivatePendingTreeIfNeeded();
     if (activated)
       test_hooks_->TreeActivatedOnThread(this);
     return activated;
   }
 
   virtual bool InitializeRenderer(scoped_ptr<OutputSurface> output_surface)
       OVERRIDE {
@@ skipping 475 matching lines @@
 
 scoped_refptr<cc::ContextProvider> LayerTreeTest::
     OffscreenContextProviderForCompositorThread() {
   if (!compositor_thread_contexts_ ||
       compositor_thread_contexts_->DestroyedOnMainThread())
     compositor_thread_contexts_ = FakeContextProvider::Create();
   return compositor_thread_contexts_;
 }
 
 }  // namespace cc