added CTRL+Click and SHIFT+Click handler for context menu, Back and Forward.

chrome/browser/ui/browser.h

Index: chrome/browser/ui/browser.h
diff --git a/chrome/browser/ui/browser.h b/chrome/browser/ui/browser.h
index e2404cac9521273d63863c2149ab1ec4ca3828df..60ab9518ad0b4348dae4316eafb9879624647363 100644
--- a/chrome/browser/ui/browser.h
+++ b/chrome/browser/ui/browser.h
@@ -634,6 +634,10 @@ class Browser : public TabHandlerDelegate,
   // Returns true if the command is executed.
   bool ExecuteCommandIfEnabled(int id);
 
+  // Executes a command from a tab content's context menu.
+  // Return true if handled.
+  bool ExecuteContextMenuCommand(int id, int event_flags);
+
   // Returns true if |command_id| is a reserved command whose keyboard shortcuts
   // should not be sent to the renderer or |event| was triggered by a key that
   // we never want to send to the renderer.
@@ -1048,12 +1052,23 @@ class Browser : public TabHandlerDelegate,
   void ReloadInternal(WindowOpenDisposition disposition, bool ignore_cache);
 
   // Return true if the window dispositions means opening a new tab.
-  bool ShouldOpenNewTabForWindowDisposition(WindowOpenDisposition disposition);
+  bool ShouldOpenNewTabForDisposition(WindowOpenDisposition disposition);
 
   // Depending on the disposition, return the current tab or a clone of the
   // current tab.
   TabContents* GetOrCloneTabForDisposition(WindowOpenDisposition disposition);
 
+  // Depending on the disposition, return the wrapper containing the current
+  // tab or a clone of the current tab.
+  TabContentsWrapper* GetOrCloneTabWrapperForDisposition(
+      WindowOpenDisposition disposition);
+
+  // Depending on the disposition, create a new browser.
+  // When disposition is NEW_WINDOW, |tab_contents| will be added to
+  // a new browser which is created in this method.
+  void CreateNewBrowserForDisposition(TabContentsWrapper* tab_contents,
+                                      WindowOpenDisposition disposition);
+
   // Sets the insertion policy of the tabstrip based on whether vertical tabs
   // are enabled.
   void UpdateTabStripModelInsertionPolicy();