cc: add PaintTimeCounter to keep track of per frame paint time

cc/layer_tree_host_impl.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_impl.h"
 
 #include <algorithm>
 
 #include "base/basictypes.h"
 #include "base/debug/trace_event.h"
 #include "base/json/json_writer.h"
 #include "base/stl_util.h"
 #include "cc/append_quads_data.h"
 #include "cc/compositor_frame_metadata.h"
 #include "cc/damage_tracker.h"
 #include "cc/debug_rect_history.h"
 #include "cc/delay_based_time_source.h"
 #include "cc/delegating_renderer.h"
 #include "cc/frame_rate_counter.h"
 #include "cc/gl_renderer.h"
 #include "cc/heads_up_display_layer_impl.h"
 #include "cc/layer_iterator.h"
 #include "cc/layer_tree_host.h"
 #include "cc/layer_tree_host_common.h"
 #include "cc/layer_tree_impl.h"
 #include "cc/math_util.h"
 #include "cc/overdraw_metrics.h"
 #include "cc/page_scale_animation.h"
+#include "cc/paint_time_counter.h"
 #include "cc/prioritized_resource_manager.h"
 #include "cc/quad_culler.h"
 #include "cc/render_pass_draw_quad.h"
 #include "cc/rendering_stats.h"
 #include "cc/scrollbar_animation_controller.h"
 #include "cc/scrollbar_layer_impl.h"
 #include "cc/shared_quad_state.h"
 #include "cc/single_thread_proxy.h"
 #include "cc/software_renderer.h"
 #include "cc/solid_color_draw_quad.h"
@@ skipping 97 matching lines @@
     , m_deviceScaleFactor(1)
     , m_visible(true)
     , m_contentsTexturesPurged(false)
     , m_managedMemoryPolicy(PrioritizedResourceManager::defaultMemoryAllocationLimit(),
                             ManagedMemoryPolicy::CUTOFF_ALLOW_EVERYTHING,
                             0,
                             ManagedMemoryPolicy::CUTOFF_ALLOW_NOTHING)
     , m_needsUpdateDrawProperties(false)
     , m_pinchGestureActive(false)
     , m_fpsCounter(FrameRateCounter::create(m_proxy->hasImplThread()))
+    , m_paintTimeCounter(PaintTimeCounter::create())
     , m_debugRectHistory(DebugRectHistory::create())
     , m_numImplThreadScrolls(0)
     , m_numMainThreadScrolls(0)
     , m_cumulativeNumLayersDrawn(0)
     , m_cumulativeNumMissingTiles(0)
     , m_lastSentMemoryVisibleBytes(0)
     , m_lastSentMemoryVisibleAndNearbyBytes(0)
     , m_lastSentMemoryUseBytes(0)
     , m_animationRegistrar(AnimationRegistrar::create())
 {
@@ skipping 1514 matching lines @@
     return NULL;
 }
 
 skia::RefPtr<SkPicture> LayerTreeHostImpl::capturePicture()
 {
     LayerTreeImpl* tree = pendingTree() ? pendingTree() : activeTree();
     LayerImpl* layer = getNonCompositedContentLayerRecursive(tree->RootLayer());
     return layer ? layer->getPicture() : skia::RefPtr<SkPicture>();
 }
 
+void LayerTreeHostImpl::savePaintTime(const base::TimeDelta& totalPaintTime)
+{
+    m_paintTimeCounter->SavePaintTime(totalPaintTime);
+}
+
 }  // namespace cc