[Mac] Refactor the fullscreen code to move logic from BWC into FullscreenCont...

chrome/browser/cocoa/browser_window_controller.h

Index: chrome/browser/cocoa/browser_window_controller.h
===================================================================
--- chrome/browser/cocoa/browser_window_controller.h	(revision 58173)
+++ chrome/browser/cocoa/browser_window_controller.h	(working copy)
@@ -98,18 +98,10 @@
   // Needed to access the view to move it to/from the fullscreen window.
   scoped_nsobject<IncognitoImageView> incognitoBadge_;
 
-  // Lazily created view which draws the background for the floating set of bars
-  // in fullscreen mode (for window types having a floating bar; it remains nil
-  // for those which don't).
-  scoped_nsobject<NSView> floatingBarBackingView_;
-
   // Tracks whether the floating bar is above or below the bookmark bar, in
   // terms of z-order.
   BOOL floatingBarAboveBookmarkBar_;
 
-  // The proportion of the floating bar which is shown (in fullscreen mode).
-  CGFloat floatingBarShownFraction_;
-
   // Various UI elements/events may want to ensure that the floating bar is
   // visible (in fullscreen mode), e.g., because of where the mouse is or where
   // keyboard focus is. Whenever an object requires bar visibility, it has
@@ -314,11 +306,6 @@
 // resolution.
 - (void)resizeFullscreenWindow;
 
-// Gets or sets the fraction of the floating bar (fullscreen overlay) that is
-// shown.  0 is completely hidden, 1 is fully shown.
-- (CGFloat)floatingBarShownFraction;
-- (void)setFloatingBarShownFraction:(CGFloat)fraction;
-
 // Query/lock/release the requirement that the tab strip/toolbar/attached
 // bookmark bar bar cluster is visible (e.g., when one of its elements has
 // focus). This is required for the floating bar in fullscreen mode, but should
@@ -343,6 +330,8 @@
 // Opens the tabpose window.
 - (void)openTabpose;
 
+- (void)floatingBarShownFractionChanged;
+
 @end  // @interface BrowserWindowController(Fullscreen)
 
 
@@ -366,9 +355,6 @@
 // function should be followed by a call to |layoutSubviews|.
 - (void)adjustWindowHeightBy:(CGFloat)deltaH;
 
-// Return an autoreleased NSWindow suitable for fullscreen use.
-- (NSWindow*)createFullscreenWindow;
-
 // Resets any saved state about window growth (due to showing the bookmark bar
 // or the download shelf), so that future shrinking will occur from the bottom.
 - (void)resetWindowGrowthState;