Almost finish moving context_menu_node_ from RenderViewImpl to RenderFrameImpl.

content/shell/browser/shell_web_contents_view_delegate_win.cc

Index: content/shell/browser/shell_web_contents_view_delegate_win.cc
===================================================================
--- content/shell/browser/shell_web_contents_view_delegate_win.cc	(revision 255719)
+++ content/shell/browser/shell_web_contents_view_delegate_win.cc	(working copy)
@@ -5,6 +5,7 @@
 #include "content/shell/browser/shell_web_contents_view_delegate.h"
 
 #include "base/command_line.h"
+#include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/render_widget_host_view.h"
@@ -190,15 +191,19 @@
 }
 
 void ShellWebContentsViewDelegate::MenuItemSelected(int selection) {
+  RenderFrameHost* frame = web_contents_->GetFocusedFrame();
   switch (selection) {
     case ShellContextMenuItemCutId:
-      web_contents_->GetRenderViewHost()->Cut();
+       if (frame)
+         frame->Cut();
       break;
     case ShellContextMenuItemCopyId:
-      web_contents_->GetRenderViewHost()->Copy();
+      if (frame)
+        frame->Copy();
       break;
     case ShellContextMenuItemPasteId:
-      web_contents_->GetRenderViewHost()->Paste();
+      if (frame)
+        frame->Paste();
       break;
     case ShellContextMenuItemDeleteId:
       web_contents_->GetRenderViewHost()->Delete();