Shifted patterns in tabs and background pattern over so that patterns line up...

chrome/browser/cocoa/browser_window_controller.mm

 // Copyright (c) 2009 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.
 
 #include <Carbon/Carbon.h>
 
 #include "base/mac_util.h"
 #include "base/scoped_nsdisable_screen_updates.h"
 #import "base/scoped_nsobject.h"
 #include "base/sys_string_conversions.h"
@@ skipping 1020 matching lines @@
   [[self window] setViewsNeedDisplay:YES];
 }
 
 - (GTMTheme*)gtm_themeForWindow:(NSWindow*)window {
   return theme_ ? theme_ : [GTMTheme defaultTheme];
 }
 
 - (NSPoint)gtm_themePatternPhaseForWindow:(NSWindow*)window {
   // Our patterns want to be drawn from the upper left hand corner of the view.
   // Cocoa wants to do it from the lower left of the window.
+  //
   // Rephase our pattern to fit this view. Some other views (Tabs, Toolbar etc.)
   // will phase their patterns relative to this so all the views look right.
+  //
+  // To line up the background pattern with the pattern in the browser window
+  // the  background pattern for the tabs needs to be moved left by 5 pixels.
+  const CGFloat kPatternHorizontalOffset = -5;
   NSView* tabStripView = [self tabStripView];
   NSRect tabStripViewWindowBounds = [tabStripView bounds];
   NSView* windowChromeView = [[window contentView] superview];
   tabStripViewWindowBounds =
       [tabStripView convertRect:tabStripViewWindowBounds
                          toView:windowChromeView];
-  NSPoint phase = NSMakePoint(NSMinX(tabStripViewWindowBounds),
+  NSPoint phase = NSMakePoint(NSMinX(tabStripViewWindowBounds)
+                                  + kPatternHorizontalOffset,
                               NSMinY(tabStripViewWindowBounds)
-                              + [TabStripController defaultTabHeight]);
+                                  + [TabStripController defaultTabHeight]);
   return phase;
 }
 
 - (NSPoint)topLeftForBubble {
   NSRect rect = [toolbarController_ starButtonInWindowCoordinates];
   NSPoint p = NSMakePoint(NSMinX(rect), NSMinY(rect));  // bottom left
 
   // Adjust top-left based on our knowledge of how the view looks.
   p.x -= 2;
   p.y += 7;
@@ skipping 472 matching lines @@
   if (frameOverlayInactiveImage) {
     [theme setValue:frameOverlayInactiveImage
        forAttribute:@"overlay"
               style:GTMThemeStyleWindow
               state:GTMThemeStateInactiveWindow];
   }
 
   return theme;
 }
 @end