Move LayerTreeHostImpl::SetVisible trace to "cc" from "webkit".

cc/trees/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/trees/layer_tree_host_impl.h"
 
 #include <algorithm>
 #include <limits>
 
 #include "base/basictypes.h"
@@ skipping 101 matching lines @@
 
  private:
   LayerImpl* inner_;
   LayerImpl* outer_;
   gfx::ScrollOffset viewport_in_content_coordinates_;
 };
 
 
 void DidVisibilityChange(LayerTreeHostImpl* id, bool visible) {
   if (visible) {
-    TRACE_EVENT_ASYNC_BEGIN1("webkit",
-                             "LayerTreeHostImpl::SetVisible",
-                             id,
-                             "LayerTreeHostImpl",
-                             id);
+    TRACE_EVENT_ASYNC_BEGIN1("cc", "LayerTreeHostImpl::SetVisible", id,
+                             "LayerTreeHostImpl", id);
     return;
   }
 
-  TRACE_EVENT_ASYNC_END0("webkit", "LayerTreeHostImpl::SetVisible", id);
+  TRACE_EVENT_ASYNC_END0("cc", "LayerTreeHostImpl::SetVisible", id);
 }
 
 size_t GetMaxTransferBufferUsageBytes(
     const ContextProvider::Capabilities& context_capabilities,
     double refresh_rate) {
   // We want to make sure the default transfer buffer size is equal to the
   // amount of data that can be uploaded by the compositor to avoid stalling
   // the pipeline.
   // For reference Chromebook Pixel can upload 1MB in about 0.5ms.
   const size_t kMaxBytesUploadedPerMs = 1024 * 1024 * 2;
@@ skipping 3338 matching lines @@
 }
 
 void LayerTreeHostImpl::UnregisterPictureLayerImpl(PictureLayerImpl* layer) {
   std::vector<PictureLayerImpl*>::iterator it =
       std::find(picture_layers_.begin(), picture_layers_.end(), layer);
   DCHECK(it != picture_layers_.end());
   picture_layers_.erase(it);
 }
 
 }  // namespace cc