[not for review] Add Draw entries to window Performance Timeline

cc/trees/layer_tree_host_common.h

 // 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.
 
 #ifndef CC_TREES_LAYER_TREE_HOST_COMMON_H_
 #define CC_TREES_LAYER_TREE_HOST_COMMON_H_
 
 #include <limits>
+#include <utility>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/memory/ref_counted.h"
+#include "base/time/time.h"
 #include "cc/base/cc_export.h"
 #include "cc/base/scoped_ptr_vector.h"
 #include "cc/layers/layer_lists.h"
 #include "ui/gfx/rect.h"
 #include "ui/gfx/transform.h"
 #include "ui/gfx/vector2d.h"
 
 namespace cc {
 
 class LayerImpl;
@@ skipping 101 matching lines @@
 
   static LayerImpl* get_layer_as_raw_ptr(const LayerImplList& layers,
                                          size_t index) {
     return layers[index];
   }
 
   struct ScrollUpdateInfo {
     int layer_id;
     gfx::Vector2d scroll_delta;
   };
+
+  struct DrawTimingInfo {
+    DrawTimingInfo();
+    ~DrawTimingInfo();
+    int64_t rect_id;
+    std::vector<std::pair<int, base::TimeTicks> > timestamps;
+  };
 };
 
 struct CC_EXPORT ScrollAndScaleSet {
   ScrollAndScaleSet();
   ~ScrollAndScaleSet();
 
   std::vector<LayerTreeHostCommon::ScrollUpdateInfo> scrolls;
   float page_scale_delta;
 };
 
+struct CC_EXPORT DrawTimingSet {
+  DrawTimingSet();
+  ~DrawTimingSet();
+
+  std::vector<LayerTreeHostCommon::DrawTimingInfo> draws;
+};
+
 template <typename LayerType>
 bool LayerTreeHostCommon::RenderSurfaceContributesToTarget(
     LayerType* layer,
     int target_surface_layer_id) {
   // A layer will either contribute its own content, or its render surface's
   // content, to the target surface. The layer contributes its surface's content
   // when both the following are true:
   //  (1) The layer actually has a render surface, and
   //  (2) The layer's render surface is not the same as the target surface.
   //
@@ skipping 91 matching lines @@
           false,
           render_surface_layer_list,
           0) {
   DCHECK(root_layer);
   DCHECK(render_surface_layer_list);
 }
 
 }  // namespace cc
 
 #endif  // CC_TREES_LAYER_TREE_HOST_COMMON_H_