Reverting 24700.

chrome/browser/cocoa/gradient_button_cell.h

Index: chrome/browser/cocoa/gradient_button_cell.h
===================================================================
--- chrome/browser/cocoa/gradient_button_cell.h	(revision 24707)
+++ chrome/browser/cocoa/gradient_button_cell.h	(working copy)
@@ -34,8 +34,6 @@
   BOOL isMouseInside_;
   scoped_nsobject<NSTrackingArea> trackingArea_;
   BOOL shouldTheme_;
-  CGFloat hoverAlpha_;  // 0-1. Controls the alpha during mouse hover
-  NSTimeInterval lastHoverUpdate_;
   scoped_nsobject<NSGradient> gradient_;
   scoped_nsobject<NSImage> underlayImage_;
 }
@@ -47,9 +45,8 @@
                       controlView:(NSView*)controlView
                         outerPath:(NSBezierPath*)outerPath
                         innerPath:(NSBezierPath*)innerPath
-              showClickedGradient:(BOOL)showClickedGradient
             showHighlightGradient:(BOOL)showHighlightGradient
-                       hoverAlpha:(CGFloat)hoverAlpha
+              showClickedGradient:(BOOL)showClickedGradient
                            active:(BOOL)active
                         cellFrame:(NSRect)cellFrame;
 
@@ -57,11 +54,6 @@
 - (NSImage*)underlayImage;
 - (void)setUnderlayImage:(NSImage*)image;
 
-// Let the view know when the mouse moves in and out. A timer will update
-// the current hoverAlpha_ based on these events.
-- (void)setMouseInside:(BOOL)flag animate:(BOOL)animate;
-
-@property(assign, nonatomic)CGFloat hoverAlpha;
 @end
 
 @interface GradientButtonCell(TestingAPI)