Add layer name into frame viewer

webkit/renderer/compositor_bindings/web_content_layer_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 "webkit/renderer/compositor_bindings/web_content_layer_impl.h"
 
 #include "base/command_line.h"
 #include "cc/base/switches.h"
 #include "cc/layers/content_layer.h"
 #include "cc/layers/picture_layer.h"
@@ skipping 48 matching lines @@
     return;
 
   WebKit::WebFloatRect web_opaque;
   // For picture layers, always record with LCD text.  PictureLayerImpl
   // will turn this off later during rasterization.
   bool use_lcd_text = usingPictureLayer() || can_use_lcd_text_;
   client_->paintContents(canvas, clip, use_lcd_text, web_opaque);
   *opaque = web_opaque;
 }
 
+std::string WebContentLayerImpl::DebugName() {
+  return UTF16ToASCII(client_->debugName());

[enne (OOO), 2013/07/18 17:50:23]

This will assert if the name is not ascii:
https://code.google.com/p/chromium/codesearch#chromium/src/base/strings/strin...

Surely there is a safer way to convert to std::string.

[jamesr, 2013/07/18 18:03:42]

You probably want to call utf8() on the string and DCHECK() that it's ASCII (see
base/strings/string_util.h)

+}
+
 void WebContentLayerImpl::DidChangeLayerCanUseLCDText() {
   // It is important to make this comparison because the LCD text status
   // here can get out of sync with that in the layer.
   if (can_use_lcd_text_ == layer_->layer()->can_use_lcd_text())
     return;
 
   // LCD text cannot be enabled once disabled.
   if (layer_->layer()->can_use_lcd_text() && ignore_lcd_text_change_)
     return;
 
   can_use_lcd_text_ = layer_->layer()->can_use_lcd_text();
   ignore_lcd_text_change_ = true;
   layer_->invalidate();
 }
 
 }  // namespace webkit