Several background pattern fixes on the Mac....

chrome/browser/cocoa/background_gradient_view.mm

Index: chrome/browser/cocoa/background_gradient_view.mm
===================================================================
--- chrome/browser/cocoa/background_gradient_view.mm	(revision 28537)
+++ chrome/browser/cocoa/background_gradient_view.mm	(working copy)
@@ -27,44 +27,31 @@
   [self setNeedsDisplay:YES];
 }
 
-// The offset of this pattern to make it line up with the top of the window.
-- (NSPoint)patternPhase {
-  NSPoint phase = NSZeroPoint;
-  phase.y += NSHeight([[self window] frame]) - kToolbarTopOffset;
-  return phase;
-}
-
-- (void)drawRect:(NSRect)rect {
+- (void)drawBackground {
   BOOL isKey = [[self window] isKeyWindow];
-
-  GTMTheme *theme = [self gtm_theme];
-
-  NSImage *backgroundImage = [theme backgroundImageForStyle:GTMThemeStyleToolBar
-                                               state:GTMThemeStateActiveWindow];
+  GTMTheme* theme = [self gtm_theme];
+  NSImage* backgroundImage =
+      [theme backgroundImageForStyle:GTMThemeStyleToolBar
+                               state:GTMThemeStateActiveWindow];
   if (backgroundImage) {
-    NSPoint phase = [self patternPhase];
-    [[NSGraphicsContext currentContext] setPatternPhase:phase];
-
-    NSColor *color = [NSColor colorWithPatternImage:backgroundImage];
+    NSColor* color = [NSColor colorWithPatternImage:backgroundImage];
     [color set];
     NSRectFill([self bounds]);
   } else {
     CGFloat winHeight = NSHeight([[self window] frame]);
-    NSGradient *gradient = [theme gradientForStyle:GTMThemeStyleToolBar
+    NSGradient* gradient = [theme gradientForStyle:GTMThemeStyleToolBar
                                              state:isKey];
     NSPoint startPoint =
         [self convertPoint:NSMakePoint(0, winHeight - kToolbarTopOffset)
                   fromView:nil];
     NSPoint endPoint =
-        [self convertPoint:NSMakePoint(0, winHeight -
-                                            kToolbarTopOffset -
-                                            kToolbarMaxHeight)
-                  fromView:nil];
+        NSMakePoint(0, winHeight - kToolbarTopOffset - kToolbarMaxHeight);
+    endPoint = [self convertPoint:endPoint fromView:nil];
 
     [gradient drawFromPoint:startPoint
                     toPoint:endPoint
-                    options:NSGradientDrawsBeforeStartingLocation |
-                            NSGradientDrawsAfterEndingLocation];
+                    options:(NSGradientDrawsBeforeStartingLocation |
+                             NSGradientDrawsAfterEndingLocation)];
   }
 
   if (showsDivider_) {