Add latency measurement system

cc/layer_tree_host_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/layer_tree_host.h"
 
 #include "base/synchronization/lock.h"
 #include "cc/content_layer.h"
 #include "cc/content_layer_client.h"
 #include "cc/layer_impl.h"
@@ skipping 2254 matching lines @@
         EXPECT_VECTOR_EQ(rootScrollLayer->scrollDelta(), gfx::Vector2d());
         EXPECT_EQ(rootScrollLayer->bounds().width() * m_deviceScaleFactor, rootScrollLayer->contentBounds().width());
         EXPECT_EQ(rootScrollLayer->bounds().height() * m_deviceScaleFactor, rootScrollLayer->contentBounds().height());
         EXPECT_EQ(childLayer->bounds().width() * m_deviceScaleFactor, childLayer->contentBounds().width());
         EXPECT_EQ(childLayer->bounds().height() * m_deviceScaleFactor, childLayer->contentBounds().height());
 
         switch (impl->activeTree()->source_frame_number()) {
         case 0:
             // Gesture scroll on impl thread.
             EXPECT_EQ(impl->scrollBegin(gfx::Point(5, 5), InputHandlerClient::Gesture), InputHandlerClient::ScrollStarted);
-            impl->scrollBy(gfx::Point(), m_scrollAmount);
+            impl->scrollBy(0, gfx::Point(), m_scrollAmount);
             impl->scrollEnd();
 
             EXPECT_VECTOR_EQ(m_initialScroll, childLayer->scrollOffset());
             EXPECT_VECTOR_EQ(m_scrollAmount, childLayer->scrollDelta());
             break;
         case 1:
             // Wheel scroll on impl thread.
             EXPECT_EQ(impl->scrollBegin(gfx::Point(5, 5), InputHandlerClient::Wheel), InputHandlerClient::ScrollStarted);
-            impl->scrollBy(gfx::Point(), m_scrollAmount);
+            impl->scrollBy(0, gfx::Point(), m_scrollAmount);
             impl->scrollEnd();
 
             EXPECT_VECTOR_EQ(m_secondScroll, childLayer->scrollOffset());
             EXPECT_VECTOR_EQ(m_scrollAmount, childLayer->scrollDelta());
             break;
         case 2:
             EXPECT_VECTOR_EQ(m_secondScroll + m_scrollAmount, childLayer->scrollOffset());
             EXPECT_VECTOR_EQ(gfx::Vector2d(0, 0), childLayer->scrollDelta());
 
             endTest();
@@ skipping 105 matching lines @@
         LayerImpl* rootScrollLayer = root->children()[0];
 
         EXPECT_VECTOR_EQ(root->scrollDelta(), gfx::Vector2d());
         EXPECT_EQ(rootScrollLayer->bounds().width() * m_deviceScaleFactor, rootScrollLayer->contentBounds().width());
         EXPECT_EQ(rootScrollLayer->bounds().height() * m_deviceScaleFactor, rootScrollLayer->contentBounds().height());
 
         switch (impl->activeTree()->source_frame_number()) {
         case 0:
             // Gesture scroll on impl thread.
             EXPECT_EQ(impl->scrollBegin(gfx::Point(5, 5), InputHandlerClient::Gesture), InputHandlerClient::ScrollStarted);
-            impl->scrollBy(gfx::Point(), m_scrollAmount);
+            impl->scrollBy(0, gfx::Point(), m_scrollAmount);
             impl->scrollEnd();
 
             EXPECT_VECTOR_EQ(m_initialScroll, rootScrollLayer->scrollOffset());
             EXPECT_VECTOR_EQ(m_scrollAmount, rootScrollLayer->scrollDelta());
             break;
         case 1:
             // Wheel scroll on impl thread.
             EXPECT_EQ(impl->scrollBegin(gfx::Point(5, 5), InputHandlerClient::Wheel), InputHandlerClient::ScrollStarted);
-            impl->scrollBy(gfx::Point(), m_scrollAmount);
+            impl->scrollBy(0, gfx::Point(), m_scrollAmount);
             impl->scrollEnd();
 
             EXPECT_VECTOR_EQ(m_secondScroll, rootScrollLayer->scrollOffset());
             EXPECT_VECTOR_EQ(m_scrollAmount, rootScrollLayer->scrollDelta());
             break;
         case 2:
             EXPECT_VECTOR_EQ(m_secondScroll + m_scrollAmount, rootScrollLayer->scrollOffset());
             EXPECT_VECTOR_EQ(gfx::Vector2d(0, 0), rootScrollLayer->scrollDelta());
 
             endTest();
@@ skipping 949 matching lines @@
     LayerTreeSettings settings;
     settings.maxPartialTextureUpdates = 4;
 
     scoped_ptr<LayerTreeHost> host = LayerTreeHost::create(&client, settings, scoped_ptr<Thread>());
     EXPECT_TRUE(host->initializeRendererIfNeeded());
     EXPECT_EQ(0u, host->settings().maxPartialTextureUpdates);
 }
 
 }  // namespace
 }  // namespace cc