Several background pattern fixes on the Mac....

chrome/browser/cocoa/chrome_browser_window.h

Index: chrome/browser/cocoa/chrome_browser_window.h
===================================================================
--- chrome/browser/cocoa/chrome_browser_window.h	(revision 28537)
+++ chrome/browser/cocoa/chrome_browser_window.h	(working copy)
@@ -7,12 +7,31 @@
 
 #import <Cocoa/Cocoa.h>
 
+#include "base/scoped_nsobject.h"
+
+// Offset from the top of the window frame to the top of the window controls
+// (zoom, close, miniaturize).
+const NSInteger kChromeWindowButtonsOffsetFromTop = 7;
+
+// Offset from the left of the window frame to the top of the window controls
+// (zoom, close, miniaturize).
+const NSInteger kChromeWindowButtonsOffsetFromLeft = 8;
+
+// Offset between the window controls (zoom, close, miniaturize).
+const NSInteger kChromeWindowButtonsInterButtonSpacing = 7;
+
 // Cocoa class representing a Chrome browser window.
 // We need to override NSWindow with our own class since we need access to all
 // unhandled keyboard events and subclassing NSWindow is the only method to do
-// this.
+// this. We also handle our own window controls and custom window frame drawing.
 @interface ChromeBrowserWindow : NSWindow {
+ @private
   BOOL shouldHideTitle_;
+  NSButton* closeButton_;
+  NSButton* miniaturizeButton_;
+  NSButton* zoomButton_;
+  BOOL entered_;
+  scoped_nsobject<NSTrackingArea> widgetTrackingArea_;
 }
 
 // See global_keyboard_shortcuts_mac.h for details on the next two functions.
@@ -31,6 +50,12 @@
 // Tells the window to suppress title drawing.
 - (void)setShouldHideTitle:(BOOL)flag;
 
+// Return true if the mouse is currently in our tracking area for our window
+// widgets.
+- (BOOL)mouseInGroup:(NSButton*)widget;
+
+// Update the tracking areas for our window widgets as appropriate.
+- (void)updateTrackingAreas;
 @end
 
 @interface ChromeBrowserWindow (UndocumentedAPI)
Property changes on: chrome/browser/cocoa/chrome_browser_window.h
___________________________________________________________________
Name: svn:eol-style
   + LF