First pass at making Chrome support metro snap mode. It creates a fullscreen-alike mode that Chrome…

chrome/browser/ui/browser.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_BROWSER_H_
 #define CHROME_BROWSER_UI_BROWSER_H_
 #pragma once
 
 #include <map>
 #include <set>
@@ skipping 531 matching lines @@
   void SelectNumberedTab(int index);
   void SelectLastTab();
   void DuplicateTab();
   void WriteCurrentURLToClipboard();
   void ConvertPopupToTabbedBrowser();
   // In kiosk mode, the first toggle is valid, the rest is discarded.
   void ToggleFullscreenMode();
   // See the description of
   // FullscreenController::ToggleFullscreenModeWithExtension.
   void ToggleFullscreenModeWithExtension(const GURL& extension_url);
+#if defined(OS_WIN)
+  // See the description of FullscreenController::ToggleMetroSnapMode.
+  void SetMetroSnapMode(bool enable);
+#endif
 #if defined(OS_MACOSX)
   void TogglePresentationMode();
 #endif
   void Exit();
 
   // Page-related commands
   void BookmarkCurrentPage();
   void PinCurrentPageToStartScreen();
   void SavePage();
   void ViewSelectedSource();
@@ skipping 333 matching lines @@
     // Change is the result of the bookmark bar pref changing.
     BOOKMARK_BAR_STATE_CHANGE_PREF_CHANGE,
 
     // Change is the result of a state change in the active tab.
     BOOKMARK_BAR_STATE_CHANGE_TAB_STATE,
 
     // Change is the result of window toggling in/out of fullscreen mode.
     BOOKMARK_BAR_STATE_CHANGE_TOGGLE_FULLSCREEN,
   };
 
+  enum FullScreenMode {
+    // Not in fullscreen mode.
+    FULLSCREEN_DISABLED,
+
+    // Fullscreen mode, occupying the whole screen.
+    FULLSCREEN_NORMAL,
+
+    // Fullscreen mode for metro snap, occupying the full height and 20% of
+    // the screen width.
+    FULLSCREEN_METRO_SNAP,
+  };
+
   // Overridden from content::WebContentsDelegate:
   virtual content::WebContents* OpenURLFromTab(
       content::WebContents* source,
       const content::OpenURLParams& params) OVERRIDE;
   virtual void NavigationStateChanged(const content::WebContents* source,
                                       unsigned changed_flags) OVERRIDE;
   virtual void AddNewContents(content::WebContents* source,
                               content::WebContents* new_contents,
                               WindowOpenDisposition disposition,
                               const gfx::Rect& initial_pos,
@@ skipping 189 matching lines @@
 
   // Updates commands for bookmark editing.
   void UpdateCommandsForBookmarkEditing();
 
   // Updates commands that affect the bookmark bar.
   void UpdateCommandsForBookmarkBar();
 
   // Set the preference that indicates that the home page has been changed.
   void MarkHomePageAsChanged(PrefService* pref_service);
 
-  // Update commands whose state depends on whether the window is in fullscreen
-  // mode.
-  void UpdateCommandsForFullscreenMode(bool is_fullscreen);
+  // Update commands whose state depends on the type of fullscreen mode the
+  // window is in.
+  void UpdateCommandsForFullscreenMode(FullScreenMode fullscreen_mode);
 
   // Update commands whose state depends on whether multiple profiles are
   // allowed.
   void UpdateCommandsForMultipleProfiles();
 
   // Updates the printing command state.
   void UpdatePrintingState(int content_restrictions);
 
   // Updates the save-page-as command state.
   void UpdateSaveAsState(int content_restrictions);
@@ skipping 318 matching lines @@
   bool window_has_shown_;
 
   // Currently open color chooser. Non-NULL after OpenColorChooser is called and
   // before DidEndColorChooser is called.
   scoped_ptr<content::ColorChooser> color_chooser_;
 
   DISALLOW_COPY_AND_ASSIGN(Browser);
 };
 
 #endif  // CHROME_BROWSER_UI_BROWSER_H_