Refactor cc scrollbar layers to separate solid-color vs desktop.

content/child/runtime_features.cc

 // Copyright 2013 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 "content/child/runtime_features.h"
 
 #include "base/command_line.h"
+#include "cc/base/switches.h"
 #include "content/public/common/content_switches.h"
 #include "third_party/WebKit/public/web/WebRuntimeFeatures.h"
 
 #if defined(OS_ANDROID)
 #include <cpu-features.h>
 #include "base/android/build_info.h"
 #endif
 
 using WebKit::WebRuntimeFeatures;
 
@@ skipping 111 matching lines @@
 
   if (command_line.HasSwitch(switches::kEnableSpeechSynthesis))
     WebRuntimeFeatures::enableSpeechSynthesis(true);
 
   if (command_line.HasSwitch(switches::kEnableWebGLDraftExtensions))
     WebRuntimeFeatures::enableWebGLDraftExtensions(true);
 
   if (command_line.HasSwitch(switches::kEnableHTMLImports))
     WebRuntimeFeatures::enableHTMLImports(true);
 
-  if (command_line.HasSwitch(switches::kEnableOverlayScrollbars))
+  if (command_line.HasSwitch(cc::switches::kEnableOverlayScrollbars))

[jamesr, 2013/08/15 22:34:24]

this is a bad change.  cc::switches should only change cc's behavior, not the
behavior of Blink

[wjmaclean, 2013/08/16 13:34:16]

OK. Is it preferable to add another, CC-specific flag? Or, should I add a static
function in some neutral location (i.e. that WebScrollbarLayerImpl can see
without a layering violation) that can see this flag when it is moved back to
content switches.

*** I will hold off changing this until you let me know your preference.

     WebRuntimeFeatures::enableOverlayScrollbars(true);
 }
 
 }  // namespace content