Implemented fullscreen exit animation with AppKit

chrome/browser/ui/cocoa/framed_browser_window.h

Index: chrome/browser/ui/cocoa/framed_browser_window.h
diff --git a/chrome/browser/ui/cocoa/framed_browser_window.h b/chrome/browser/ui/cocoa/framed_browser_window.h
index ec6da688f6e308387b6e555bae23564dec4bb4c7..e688751b713b2cf03282b6864cda8d79216745fb 100644
--- a/chrome/browser/ui/cocoa/framed_browser_window.h
+++ b/chrome/browser/ui/cocoa/framed_browser_window.h
@@ -35,6 +35,10 @@ const CGFloat kBrowserFrameViewPaintHeight = 60.0;
   NSButton* miniaturizeButton_;
   NSButton* zoomButton_;
 
+  // This is a lock which prevents the the frame and style
+  // of the window to be changed when it's set to YES
+  BOOL frameAndStyleLock_;
+
   CGFloat windowButtonsInterButtonSpacing_;
 }
 
@@ -45,6 +49,8 @@ const CGFloat kBrowserFrameViewPaintHeight = 60.0;
 // Tells the window to suppress title drawing.
 - (void)setShouldHideTitle:(BOOL)flag;
 
+- (void) setFrameAndStyleLock:(BOOL)lock;
+
 // Returns the desired spacing between window control views.
 - (CGFloat)windowButtonsInterButtonSpacing;