cc:: Add RenderingStatsInstrumentation to manage collection of RenderingStats

cc/trees/layer_tree_host_impl_unittest.cc

Index: cc/trees/layer_tree_host_impl_unittest.cc
diff --git a/cc/trees/layer_tree_host_impl_unittest.cc b/cc/trees/layer_tree_host_impl_unittest.cc
index b835bc54ade434bc335cdb4f1cc2085a973dbbba..814260f72b41e370500bc0545e3d2ae06dd6d0fb 100644
--- a/cc/trees/layer_tree_host_impl_unittest.cc
+++ b/cc/trees/layer_tree_host_impl_unittest.cc
@@ -32,6 +32,7 @@
 #include "cc/test/animation_test_common.h"
 #include "cc/test/fake_output_surface.h"
 #include "cc/test/fake_proxy.h"
+#include "cc/test/fake_rendering_stats_instrumentation.h"
 #include "cc/test/fake_video_frame_provider.h"
 #include "cc/test/fake_web_scrollbar_theme_geometry.h"
 #include "cc/test/geometry_test_utils.h"
@@ -78,7 +79,7 @@ public:
         LayerTreeSettings settings;
         settings.minimum_occlusion_tracking_size = gfx::Size();
 
-        m_hostImpl = LayerTreeHostImpl::Create(settings, this, &m_proxy);
+        m_hostImpl = LayerTreeHostImpl::Create(settings, this, &m_proxy, &m_statsInstrumentation);
         m_hostImpl->InitializeRenderer(createOutputSurface());
         m_hostImpl->SetViewportSize(gfx::Size(10, 10), gfx::Size(10, 10));
     }
@@ -112,7 +113,7 @@ public:
         settings.minimum_occlusion_tracking_size = gfx::Size();
         settings.partial_swap_enabled = partialSwap;
 
-        m_hostImpl = LayerTreeHostImpl::Create(settings, this, &m_proxy);
+        m_hostImpl = LayerTreeHostImpl::Create(settings, this, &m_proxy, &m_statsInstrumentation);
 
         m_hostImpl->InitializeRenderer(outputSurface.Pass());
         m_hostImpl->SetViewportSize(gfx::Size(10, 10), gfx::Size(10, 10));
@@ -224,6 +225,7 @@ protected:
     DebugScopedSetMainThreadBlocked m_alwaysMainThreadBlocked;
 
     scoped_ptr<LayerTreeHostImpl> m_hostImpl;
+    FakeRenderingStatsInstrumentation m_statsInstrumentation;
     bool m_onCanDrawStateChangedCalled;
     bool m_hasPendingTree;
     bool m_didRequestCommit;
@@ -384,7 +386,7 @@ TEST_F(LayerTreeHostImplTest, scrollWithoutRootLayer)
 TEST_F(LayerTreeHostImplTest, scrollWithoutRenderer)
 {
     LayerTreeSettings settings;
-    m_hostImpl = LayerTreeHostImpl::Create(settings, this, &m_proxy);
+    m_hostImpl = LayerTreeHostImpl::Create(settings, this, &m_proxy, &m_statsInstrumentation);
 
     // Initialization will fail here.
     m_hostImpl->InitializeRenderer(FakeOutputSurface::Create3d(scoped_ptr<WebKit::WebGraphicsContext3D>(new TestWebGraphicsContext3DMakeCurrentFails)).PassAs<OutputSurface>());
@@ -1102,7 +1104,7 @@ TEST_F(LayerTreeHostImplTest, scrollNonScrollableRootWithTopControls)
     settings.calculate_top_controls_position = true;
     settings.top_controls_height = 50;
 
-    m_hostImpl = LayerTreeHostImpl::Create(settings, this, &m_proxy);
+    m_hostImpl = LayerTreeHostImpl::Create(settings, this, &m_proxy, &m_statsInstrumentation);
     m_hostImpl->InitializeRenderer(createOutputSurface());
     m_hostImpl->SetViewportSize(gfx::Size(10, 10), gfx::Size(10, 10));
 
@@ -2152,7 +2154,7 @@ TEST_F(LayerTreeHostImplTest, partialSwapReceivesDamageRect)
     // that we can force partial swap enabled.
     LayerTreeSettings settings;
     settings.partial_swap_enabled = true;
-    scoped_ptr<LayerTreeHostImpl> layerTreeHostImpl = LayerTreeHostImpl::Create(settings, this, &m_proxy);
+    scoped_ptr<LayerTreeHostImpl> layerTreeHostImpl = LayerTreeHostImpl::Create(settings, this, &m_proxy, &m_statsInstrumentation);
     layerTreeHostImpl->InitializeRenderer(outputSurface.Pass());
     layerTreeHostImpl->SetViewportSize(gfx::Size(500, 500), gfx::Size(500, 500));
 
@@ -2444,13 +2446,13 @@ public:
     }
 };
 
-static scoped_ptr<LayerTreeHostImpl> setupLayersForOpacity(bool partialSwap, LayerTreeHostImplClient* client, Proxy* proxy)
+static scoped_ptr<LayerTreeHostImpl> setupLayersForOpacity(bool partialSwap, LayerTreeHostImplClient* client, Proxy* proxy, RenderingStatsInstrumentation* statsInstrumentation)
 {
     scoped_ptr<OutputSurface> outputSurface = FakeOutputSurface::Create3d(scoped_ptr<WebKit::WebGraphicsContext3D>(new PartialSwapContext)).PassAs<OutputSurface>();
 
     LayerTreeSettings settings;
     settings.partial_swap_enabled = partialSwap;
-    scoped_ptr<LayerTreeHostImpl> myHostImpl = LayerTreeHostImpl::Create(settings, client, proxy);
+    scoped_ptr<LayerTreeHostImpl> myHostImpl = LayerTreeHostImpl::Create(settings, client, proxy, statsInstrumentation);
     myHostImpl->InitializeRenderer(outputSurface.Pass());
     myHostImpl->SetViewportSize(gfx::Size(100, 100), gfx::Size(100, 100));
 
@@ -2514,7 +2516,7 @@ static scoped_ptr<LayerTreeHostImpl> setupLayersForOpacity(bool partialSwap, Lay
 
 TEST_F(LayerTreeHostImplTest, contributingLayerEmptyScissorPartialSwap)
 {
-    scoped_ptr<LayerTreeHostImpl> myHostImpl = setupLayersForOpacity(true, this, &m_proxy);
+    scoped_ptr<LayerTreeHostImpl> myHostImpl = setupLayersForOpacity(true, this, &m_proxy, &m_statsInstrumentation);
 
     {
         LayerTreeHostImpl::FrameData frame;
@@ -2534,7 +2536,7 @@ TEST_F(LayerTreeHostImplTest, contributingLayerEmptyScissorPartialSwap)
 
 TEST_F(LayerTreeHostImplTest, contributingLayerEmptyScissorNoPartialSwap)
 {
-    scoped_ptr<LayerTreeHostImpl> myHostImpl = setupLayersForOpacity(false, this, &m_proxy);
+    scoped_ptr<LayerTreeHostImpl> myHostImpl = setupLayersForOpacity(false, this, &m_proxy, &m_statsInstrumentation);
 
     {
         LayerTreeHostImpl::FrameData frame;
@@ -2749,7 +2751,7 @@ TEST_F(LayerTreeHostImplTest, textureCachingWithOcclusion)
     LayerTreeSettings settings;
     settings.minimum_occlusion_tracking_size = gfx::Size();
     settings.cache_render_pass_contents = true;
-    scoped_ptr<LayerTreeHostImpl> myHostImpl = LayerTreeHostImpl::Create(settings, this, &m_proxy);
+    scoped_ptr<LayerTreeHostImpl> myHostImpl = LayerTreeHostImpl::Create(settings, this, &m_proxy, &m_statsInstrumentation);
 
     // Layers are structure as follows:
     //
@@ -2864,7 +2866,7 @@ TEST_F(LayerTreeHostImplTest, textureCachingWithOcclusionEarlyOut)
     LayerTreeSettings settings;
     settings.minimum_occlusion_tracking_size = gfx::Size();
     settings.cache_render_pass_contents = true;
-    scoped_ptr<LayerTreeHostImpl> myHostImpl = LayerTreeHostImpl::Create(settings, this, &m_proxy);
+    scoped_ptr<LayerTreeHostImpl> myHostImpl = LayerTreeHostImpl::Create(settings, this, &m_proxy, &m_statsInstrumentation);
 
     // Layers are structure as follows:
     //
@@ -2979,7 +2981,7 @@ TEST_F(LayerTreeHostImplTest, textureCachingWithOcclusionExternalOverInternal)
     LayerTreeSettings settings;
     settings.minimum_occlusion_tracking_size = gfx::Size();
     settings.cache_render_pass_contents = true;
-    scoped_ptr<LayerTreeHostImpl> myHostImpl = LayerTreeHostImpl::Create(settings, this, &m_proxy);
+    scoped_ptr<LayerTreeHostImpl> myHostImpl = LayerTreeHostImpl::Create(settings, this, &m_proxy, &m_statsInstrumentation);
 
     // Layers are structured as follows:
     //
@@ -3066,7 +3068,7 @@ TEST_F(LayerTreeHostImplTest, textureCachingWithOcclusionExternalNotAligned)
 {
     LayerTreeSettings settings;
     settings.cache_render_pass_contents = true;
-    scoped_ptr<LayerTreeHostImpl> myHostImpl = LayerTreeHostImpl::Create(settings, this, &m_proxy);
+    scoped_ptr<LayerTreeHostImpl> myHostImpl = LayerTreeHostImpl::Create(settings, this, &m_proxy, &m_statsInstrumentation);
 
     // Layers are structured as follows:
     //
@@ -3141,7 +3143,7 @@ TEST_F(LayerTreeHostImplTest, textureCachingWithOcclusionPartialSwap)
     settings.minimum_occlusion_tracking_size = gfx::Size();
     settings.partial_swap_enabled = true;
     settings.cache_render_pass_contents = true;
-    scoped_ptr<LayerTreeHostImpl> myHostImpl = LayerTreeHostImpl::Create(settings, this, &m_proxy);
+    scoped_ptr<LayerTreeHostImpl> myHostImpl = LayerTreeHostImpl::Create(settings, this, &m_proxy, &m_statsInstrumentation);
 
     // Layers are structure as follows:
     //
@@ -3253,7 +3255,7 @@ TEST_F(LayerTreeHostImplTest, textureCachingWithScissor)
     LayerTreeSettings settings;
     settings.minimum_occlusion_tracking_size = gfx::Size();
     settings.cache_render_pass_contents = true;
-    scoped_ptr<LayerTreeHostImpl> myHostImpl = LayerTreeHostImpl::Create(settings, this, &m_proxy);
+    scoped_ptr<LayerTreeHostImpl> myHostImpl = LayerTreeHostImpl::Create(settings, this, &m_proxy, &m_statsInstrumentation);
 
     /*
       Layers are created as follows:
@@ -3360,7 +3362,7 @@ TEST_F(LayerTreeHostImplTest, surfaceTextureCaching)
     settings.minimum_occlusion_tracking_size = gfx::Size();
     settings.partial_swap_enabled = true;
     settings.cache_render_pass_contents = true;
-    scoped_ptr<LayerTreeHostImpl> myHostImpl = LayerTreeHostImpl::Create(settings, this, &m_proxy);
+    scoped_ptr<LayerTreeHostImpl> myHostImpl = LayerTreeHostImpl::Create(settings, this, &m_proxy, &m_statsInstrumentation);
 
     LayerImpl* rootPtr;
     LayerImpl* intermediateLayerPtr;
@@ -3519,7 +3521,7 @@ TEST_F(LayerTreeHostImplTest, surfaceTextureCachingNoPartialSwap)
     LayerTreeSettings settings;
     settings.minimum_occlusion_tracking_size = gfx::Size();
     settings.cache_render_pass_contents = true;
-    scoped_ptr<LayerTreeHostImpl> myHostImpl = LayerTreeHostImpl::Create(settings, this, &m_proxy);
+    scoped_ptr<LayerTreeHostImpl> myHostImpl = LayerTreeHostImpl::Create(settings, this, &m_proxy, &m_statsInstrumentation);
 
     LayerImpl* rootPtr;
     LayerImpl* intermediateLayerPtr;