Move Render(View|Widget)Host and associated classes to content namespace.

chrome/browser/extensions/extension_function_dispatcher.h

Index: chrome/browser/extensions/extension_function_dispatcher.h
diff --git a/chrome/browser/extensions/extension_function_dispatcher.h b/chrome/browser/extensions/extension_function_dispatcher.h
index cb429e0bdb41330c356b0938a015c8ed042e5cf0..6a8dbe96d68e0e81725b7d69b28e72d9beed3557 100644
--- a/chrome/browser/extensions/extension_function_dispatcher.h
+++ b/chrome/browser/extensions/extension_function_dispatcher.h
@@ -19,10 +19,10 @@ class ChromeRenderMessageFilter;
 class Extension;
 class ExtensionFunction;
 class Profile;
-class RenderViewHost;
 struct ExtensionHostMsg_Request_Params;
 
 namespace content {
+class RenderViewHost;
 class WebContents;
 }
 
@@ -98,7 +98,7 @@ class ExtensionFunctionDispatcher
 
   // Message handlers.
   void Dispatch(const ExtensionHostMsg_Request_Params& params,
-                RenderViewHost* sender);
+                content::RenderViewHost* sender);
 
   // Called when an ExtensionFunction is done executing, after it has sent
   // a response (if any) to the extension.
@@ -110,7 +110,7 @@ class ExtensionFunctionDispatcher
   //
   // See the comments for ExtensionFunction::GetCurrentBrowser() for more
   // details.
-  Browser* GetCurrentBrowser(RenderViewHost* render_view_host,
+  Browser* GetCurrentBrowser(content::RenderViewHost* render_view_host,
                              bool include_incognito);
 
   // The profile that this dispatcher is associated with.