Fix the misalignment on CrOS of the tab background images

chrome/browser/ui/cocoa/tabs/tab_window_controller.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_window_controller.h"
 
 #include "base/logging.h"
 #import "chrome/browser/ui/cocoa/fast_resize_view.h"
 #import "chrome/browser/ui/cocoa/framed_browser_window.h"
 #import "chrome/browser/ui/cocoa/tabs/tab_strip_view.h"
@@ skipping 15 matching lines @@
     return [[[self parentWindow] windowController] themeProvider];
   return NULL;
 }
 
 - (ThemedWindowStyle)themedWindowStyle {
   if ([self parentWindow])
     return [[[self parentWindow] windowController] themedWindowStyle];
   return NO;
 }
 
-- (NSPoint)themePatternPhase {
-  if ([self parentWindow])
-    return [[[self parentWindow] windowController] themePatternPhase];
+- (NSPoint)themePatternPhaseForAlignment:(ThemePatternAlignment)alignment {
+  if ([self parentWindow]) {
+    return [[[self parentWindow] windowController]
+        themePatternPhaseForAlignment:alignment];
+  }
   return NSZeroPoint;
 }
 
 @end
 
 @implementation TabWindowController
 
 - (id)initTabWindowControllerWithTabStrip:(BOOL)hasTabStrip {
   NSRect contentRect = NSMakeRect(60, 229, 750, 600);
   base::scoped_nsobject<FramedBrowserWindow> window(
@@ skipping 234 matching lines @@
   closeDeferred_ = YES;
 }
 
 // Called when the size of the window content area has changed. Override to
 // position specific views. Base class implementation does nothing.
 - (void)layoutSubviews {
   NOTIMPLEMENTED();
 }
 
 @end