Change LayerHostImpl to use frame time from BeginFrameArgs rather than ::Now()

cc/trees/layer_tree_host_impl_unittest.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/trees/layer_tree_host_impl.h"
 
 #include <cmath>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 1152 matching lines @@
       LayerTreeHostImplClient* client,
       Proxy* proxy,
       RenderingStatsInstrumentation* rendering_stats_instrumentation)
       : LayerTreeHostImpl(settings,
                           client,
                           proxy,
                           rendering_stats_instrumentation,
                           NULL,
                           0) {}
 
-  virtual base::TimeTicks CurrentPhysicalTimeTicks() const OVERRIDE {
-    return fake_current_physical_time_;
-  }
-
   void SetCurrentPhysicalTimeTicksForTest(base::TimeTicks fake_now) {
-    fake_current_physical_time_ = fake_now;
+    OverrideCurrentFrameTime(fake_now);

[danakj, 2014/03/11 18:32:36]

Just make the tests call this directly?

   }
 
  private:
   base::TimeTicks fake_current_physical_time_;
 };
 
 TEST_F(LayerTreeHostImplTest, ScrollbarLinearFadeScheduling) {
   LayerTreeSettings settings;
   settings.scrollbar_animator = LayerTreeSettings::LinearFade;
   settings.scrollbar_linear_fade_delay_ms = 20;
@@ skipping 4990 matching lines @@
   EXPECT_EQ(host_impl_->global_tile_state().hard_memory_limit_in_bytes,
             300u * 1024u * 1024u);
   EXPECT_EQ(host_impl_->global_tile_state().soft_memory_limit_in_bytes,
             150u * 1024u * 1024u);
   EXPECT_EQ(host_impl_->global_tile_state().unused_memory_limit_in_bytes,
             75u * 1024u * 1024u);
 }
 
 }  // namespace
 }  // namespace cc