Preliminary metro snap plumbing.

chrome/browser/ui/views/frame/browser_view.h

Index: chrome/browser/ui/views/frame/browser_view.h
diff --git a/chrome/browser/ui/views/frame/browser_view.h b/chrome/browser/ui/views/frame/browser_view.h
index 72ce6850f4674ee4ff48b145021051c40f29304e..d13ceddc632cb9d821068f4652058f3ec4574ff6 100644
--- a/chrome/browser/ui/views/frame/browser_view.h
+++ b/chrome/browser/ui/views/frame/browser_view.h
@@ -254,6 +254,9 @@ class BrowserView : public BrowserWindow,
       const GURL& url,
       FullscreenExitBubbleType bubble_type) OVERRIDE;
   virtual bool IsFullscreen() const OVERRIDE;
+#if defined(OS_WIN)
+  virtual void ToggleMetroSnapMode(bool enable) OVERRIDE;
+#endif
   virtual LocationBar* GetLocationBar() const OVERRIDE;
   virtual void SetFocusToLocationBar(bool select_all) OVERRIDE;
   virtual void UpdateReloadStopState(bool is_loading, bool force) OVERRIDE;
@@ -439,6 +442,11 @@ class BrowserView : public BrowserWindow,
   FRIEND_TEST_ALL_PREFIXES(BrowserViewsAccessibilityTest,
                            TestAboutChromeViewAccObj);
 
+  enum ProcessFullscreenType {

[sky, 2012/06/11 17:04:31]

How about just FullscreenType

[robertshield, 2012/06/11 21:06:57]

Done.

+    FOR_DESKTOP,
+    FOR_METRO
+  };
+
   // We store this on linux because we must call ProcessFullscreen()
   // asynchronously from FullScreenStateChanged() instead of directly from
   // EnterFullscreen().
@@ -502,6 +510,7 @@ class BrowserView : public BrowserWindow,
   // |bubble_type| determines what should be shown in the fullscreen exit
   // bubble.
   void ProcessFullscreen(bool fullscreen,
+                         ProcessFullscreenType fullscreen_type,
                          const GURL& url,
                          FullscreenExitBubbleType bubble_type);