Revert 186643 - Caused a 10% regression on SunSpider benchmark

chrome/renderer/extensions/page_actions_custom_bindings.h

Index: chrome/renderer/extensions/page_actions_custom_bindings.h
===================================================================
--- chrome/renderer/extensions/page_actions_custom_bindings.h	(revision 186747)
+++ chrome/renderer/extensions/page_actions_custom_bindings.h	(working copy)
@@ -13,8 +13,7 @@
 // Implements custom bindings for the pageActions API.
 class PageActionsCustomBindings : public ChromeV8Extension {
  public:
-  PageActionsCustomBindings(Dispatcher* extension_dispatcher,
-                            v8::Handle<v8::Context> v8_context);
+  explicit PageActionsCustomBindings(Dispatcher* extension_dispatcher);
 
  private:
   static v8::Handle<v8::Value> GetCurrentPageActions(const v8::Arguments& args);