Cleanup of v8 extension stuff. Playback extension is only used in chrome, so move it to chrome\rend…

content/renderer/render_thread_impl.cc

Index: content/renderer/render_thread_impl.cc
===================================================================
--- content/renderer/render_thread_impl.cc	(revision 132793)
+++ content/renderer/render_thread_impl.cc	(working copy)
@@ -79,7 +79,6 @@
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebView.h"
 #include "ui/base/ui_base_switches.h"
 #include "v8/include/v8.h"
-#include "webkit/extensions/v8/playback_extension.h"
 #include "webkit/glue/webkit_glue.h"
 
 // TODO(port)
@@ -483,12 +482,6 @@
   webkit_glue::EnableWebCoreLogChannels(
       command_line.GetSwitchValueASCII(switches::kWebCoreLogChannels));
 
-  if (command_line.HasSwitch(switches::kPlaybackMode) ||
-      command_line.HasSwitch(switches::kRecordMode) ||
-      command_line.HasSwitch(switches::kNoJsRandomness)) {
-    RegisterExtension(extensions_v8::PlaybackExtension::Get());
-  }
-
   if (CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kDomAutomationController)) {
     base::StringPiece extension = content::GetContentClient()->GetDataResource(