Adds the ability for WebContentsDelegate to decide if event should be updated

chrome/browser/ui/browser_window.h

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_UI_BROWSER_WINDOW_H_
 #define CHROME_BROWSER_UI_BROWSER_WINDOW_H_
 
 #include "base/callback_forward.h"
 #include "build/build_config.h"
 #include "chrome/browser/lifetime/browser_close_manager.h"
@@ skipping 24 matching lines @@
 struct WebApplicationInfo;
 
 namespace autofill {
 class SaveCardBubbleController;
 class SaveCardBubbleView;
 }
 
 namespace content {
 class WebContents;
 struct NativeWebKeyboardEvent;
+enum class KeyboardEventProcessingResult;
 }
 
 namespace extensions {
 class Command;
 class Extension;
 }
 
 namespace gfx {
 class Rect;
 class Size;
@@ skipping 246 matching lines @@
       Profile* profile,
       content::WebContents* web_contents,
       const GURL& virtual_url,
       const security_state::SecurityInfo& security_info) = 0;
 
   // Shows the app menu (for accessibility).
   virtual void ShowAppMenu() = 0;
 
   // Allows the BrowserWindow object to handle the specified keyboard event
   // before sending it to the renderer.
-  // Returns true if the |event| was handled. Otherwise, if the |event| would
-  // be handled in HandleKeyboardEvent() method as a normal keyboard shortcut,
-  // |*is_keyboard_shortcut| should be set to true.
-  virtual bool PreHandleKeyboardEvent(
-      const content::NativeWebKeyboardEvent& event,
-      bool* is_keyboard_shortcut) = 0;
+  virtual content::KeyboardEventProcessingResult PreHandleKeyboardEvent(
+      const content::NativeWebKeyboardEvent& event) = 0;
 
   // Allows the BrowserWindow object to handle the specified keyboard event,
   // if the renderer did not process it.
   virtual void HandleKeyboardEvent(
       const content::NativeWebKeyboardEvent& event) = 0;
 
   // Clipboard commands applied to the whole browser window.
   virtual void CutCopyPaste(int command_id) = 0;
 
   // Return the correct disposition for a popup window based on |bounds|.
@@ skipping 55 matching lines @@
   virtual std::string GetWorkspace() const = 0;
   virtual bool IsVisibleOnAllWorkspaces() const = 0;
 
  protected:
   friend class BrowserCloseManager;
   friend class BrowserView;
   virtual void DestroyBrowser() = 0;
 };
 
 #endif  // CHROME_BROWSER_UI_BROWSER_WINDOW_H_