Separate out logic to handle different category/group of context menu items from RVContextMenu class

chrome/browser/tab_contents/render_view_context_menu.h

Index: chrome/browser/tab_contents/render_view_context_menu.h
diff --git a/chrome/browser/tab_contents/render_view_context_menu.h b/chrome/browser/tab_contents/render_view_context_menu.h
index 732ac75b7e422c49bfe56320cd42a15fb1bb9b8b..7d72f70388aca15385f0605ed4730bd00a2496c9 100644
--- a/chrome/browser/tab_contents/render_view_context_menu.h
+++ b/chrome/browser/tab_contents/render_view_context_menu.h
@@ -11,6 +11,7 @@
 #include "base/memory/scoped_ptr.h"
 #include "base/observer_list.h"
 #include "base/strings/string16.h"
+#include "chrome/browser/context_menu/context_menu_content_type.h"
 #include "chrome/browser/custom_handlers/protocol_handler_registry.h"
 #include "chrome/browser/extensions/context_menu_matcher.h"
 #include "chrome/browser/extensions/menu_manager.h"
@@ -149,7 +150,7 @@ class RenderViewContextMenu : public ui::SimpleMenuModel::Delegate,
   virtual void MenuWillShow(ui::SimpleMenuModel* source) OVERRIDE;
   virtual void MenuClosed(ui::SimpleMenuModel* source) OVERRIDE;
 
-  // RenderViewContextMenuDelegate implementation.
+  // RenderViewContextMenuProxy implementation.
   virtual void AddMenuItem(int command_id,
                            const base::string16& title) OVERRIDE;
   virtual void AddCheckItem(int command_id,
@@ -203,12 +204,10 @@ class RenderViewContextMenu : public ui::SimpleMenuModel::Delegate,
 
   // Gets the extension (if any) associated with the WebContents that we're in.
   const extensions::Extension* GetExtension() const;
-  void AppendAppModeItems();
-  void AppendPlatformAppItems();
-  void AppendPopupExtensionItems();
-  void AppendPanelItems();
   bool AppendCustomItems();
+
   void AppendDeveloperItems();
+  void AppendDevtoolsForUnpackedExtensions();
   void AppendLinkItems();
   void AppendImageItems();
   void AppendAudioItems();
@@ -222,6 +221,9 @@ class RenderViewContextMenu : public ui::SimpleMenuModel::Delegate,
   void AppendEditableItems();
   void AppendSearchProvider();
   void AppendAllExtensionItems();
+  void AppendCurrentExtensionItems();
+  void AppendPrintPreviewItems();
+  void AppendSearchWebForImageItems();
   void AppendSpellingSuggestionsSubMenu();
   void AppendSpellcheckOptionsSubMenu();
   void AppendSpeechInputOptionsSubMenu();
@@ -287,12 +289,7 @@ class RenderViewContextMenu : public ui::SimpleMenuModel::Delegate,
   // should be notified of menu closing without execution.
   bool command_executed_;
 
-  // Whether or not the menu was triggered for a browser plugin guest.
-  // Guests are rendered inside chrome apps, but have most of the actions
-  // that a regular web page has.
-  // Currently actions/items that are suppressed from guests are: searching,
-  // printing, speech and instant.
-  bool is_guest_;
+  scoped_ptr<ContextMenuContentType> content_type_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderViewContextMenu);
 };