Preliminary metro snap plumbing.

chrome/browser/ui/fullscreen_controller.h

 // Copyright (c) 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_FULLSCREEN_CONTROLLER_H_
 #define CHROME_BROWSER_UI_FULLSCREEN_CONTROLLER_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "base/memory/ref_counted.h"
@@ skipping 33 matching lines @@
   // transitioned to fullscreen by a browser (vs tab) mode transition.
   bool IsFullscreenForBrowser() const;
 
   // Returns true if fullscreen has been caused by a tab.
   // The window may still be transitioning, and window_->IsFullscreen()
   // may still return false.
   bool IsFullscreenForTabOrPending() const;
   bool IsFullscreenForTabOrPending(
       const content::WebContents* web_contents) const;
 
+#if defined(OS_WIN)
+  // Returns whether we are currently in a Metro snap view.
+  bool IsInMetroSnapMode();
+#endif
+
   bool IsMouseLockRequested() const;
   bool IsMouseLocked() const;
 
   // Requests.
   void RequestToLockMouse(content::WebContents* web_contents,
                           bool user_gesture,
                           bool last_unlocked_by_target);
   void ToggleFullscreenModeForTab(content::WebContents* web_contents,
                                   bool enter_fullscreen);
+#if defined(OS_WIN)
+  // API that puts the window into a mode suitable for rendering when Chrome
+  // is rendered in a 20% screen-width Metro snap view on Windows 8.
+  void SetMetroSnapMode(bool enable);
+#endif
 #if defined(OS_MACOSX)
   void TogglePresentationMode();
 #endif
   void ToggleFullscreenMode();
   // Extension API implementation uses this method to toggle fullscreen mode.
   // The extension's name is displayed in the full screen bubble UI to attribute
   // the cause of the full screen state change.
   void ToggleFullscreenModeWithExtension(const GURL& extension_url);
 
   // Notifications.
@@ skipping 64 matching lines @@
 
   // TabContents for current tab requesting or currently in mouse lock.
   TabContents* mouse_lock_tab_;
 
   MouseLockState mouse_lock_state_;
 
   DISALLOW_COPY_AND_ASSIGN(FullscreenController);
 };
 
 #endif  // CHROME_BROWSER_UI_FULLSCREEN_CONTROLLER_H_