Switch to use SharedBitmapManager all the time in cc_unittests

cc/test/fake_layer_tree_host_impl.cc

 // Copyright 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 "cc/test/fake_layer_tree_host_impl.h"
+#include "cc/test/test_shared_bitmap_manager.h"
 #include "cc/trees/layer_tree_impl.h"
 
 namespace cc {
 
 FakeLayerTreeHostImpl::FakeLayerTreeHostImpl(Proxy* proxy)
     : LayerTreeHostImpl(LayerTreeSettings(),
                         &client_,
                         proxy,
                         &stats_instrumentation_,
                         NULL,
                         0) {
   // Explicitly clear all debug settings.
   SetDebugState(LayerTreeDebugState());
   SetViewportSize(gfx::Size(100, 100));
+  bitmap_manager_.reset(new TestSharedBitmapManager);

[danakj, 2014/03/18 23:42:44]

This is kinda unfortunate. Can we own it outside this class and pass it to the
constructor? This might look a lot like the LayerTreeHostFactory in
https://codereview.chromium.org/202763002/diff/30001/cc/layers/layer_unittest.cc

+  shared_bitmap_manager_ = bitmap_manager_.get();
 }
 
 FakeLayerTreeHostImpl::FakeLayerTreeHostImpl(const LayerTreeSettings& settings,
                                              Proxy* proxy)
     : LayerTreeHostImpl(settings,
                         &client_,
                         proxy,
                         &stats_instrumentation_,
                         NULL,
                         0) {
   // Explicitly clear all debug settings.
   SetDebugState(LayerTreeDebugState());
+  bitmap_manager_.reset(new TestSharedBitmapManager);
+  shared_bitmap_manager_ = bitmap_manager_.get();
 }
 
 FakeLayerTreeHostImpl::~FakeLayerTreeHostImpl() {}
 
 void FakeLayerTreeHostImpl::CreatePendingTree() {
   LayerTreeHostImpl::CreatePendingTree();
   float arbitrary_large_page_scale = 100000.f;
   pending_tree()->SetPageScaleFactorAndLimits(
       1.f, 1.f / arbitrary_large_page_scale, arbitrary_large_page_scale);
 }
 
 base::TimeTicks FakeLayerTreeHostImpl::CurrentFrameTimeTicks() {
   if (current_frame_time_ticks_.is_null())
     return LayerTreeHostImpl::CurrentFrameTimeTicks();
   return current_frame_time_ticks_;
 }
 
 void FakeLayerTreeHostImpl::SetCurrentFrameTimeTicks(
     base::TimeTicks current_frame_time_ticks) {
   current_frame_time_ticks_ = current_frame_time_ticks;
 }
 
 }  // namespace cc