Refactor [FramedBrowserWindow drawWindowThemeInDirtyRect:] to use themeImagePositionForAlignment:

chrome/browser/ui/cocoa/tabs/tab_view.mm

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import "chrome/browser/ui/cocoa/tabs/tab_view.h"
 
 #include "base/logging.h"
 #include "base/mac/sdk_forward_declarations.h"
 #include "chrome/browser/themes/theme_service.h"
 #import "chrome/browser/ui/cocoa/nsview_additions.h"
@@ skipping 305 matching lines @@
 }
 
 // Draws the tab background.
 - (void)drawFill:(NSRect)dirtyRect {
   gfx::ScopedNSGraphicsContextSaveGState scopedGState;
   NSGraphicsContext* context = [NSGraphicsContext currentContext];
   CGContextRef cgContext = static_cast<CGContextRef>([context graphicsPort]);
 
   ThemeService* themeProvider =
       static_cast<ThemeService*>([[self window] themeProvider]);
-  NSPoint phase = [[self window]
-      themePatternPhaseForAlignment: THEME_PATTERN_ALIGN_WITH_TAB_STRIP];
-  [context cr_setPatternPhase:phase forView:self];
+  NSPoint position = [[self window]
+      themeImagePositionForAlignment: THEME_IMAGE_ALIGN_WITH_TAB_STRIP];
+  [context cr_setPatternPhase:position forView:self];
 
   CGImageRef mask([self tabClippingMask]);
   CGRect maskBounds = CGRectMake(0, 0, maskCacheWidth_, kMaskHeight);
   CGContextClipToMask(cgContext, maskBounds, mask);
 
   bool selected = [self state];
   if (selected) {
     [self drawFillForActiveTab:dirtyRect];
     return;
   }
@@ skipping 366 matching lines @@
   CGFloat middleWidth = tabWidth - leftWidth - rightWidth;
   NSRect middleRect = NSMakeRect(leftWidth, 0, middleWidth, kFillHeight);
   [[NSColor whiteColor] setFill];
   NSRectFill(middleRect);
 
   maskCache_.reset(CGBitmapContextCreateImage(maskContext));
   return maskCache_;
 }
 
 @end  // @implementation TabView(Private)