Use proper namespace in skia/ext

chrome/browser/ui/cocoa/apps/titlebar_background_view.mm

 // Copyright 2015 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/apps/titlebar_background_view.h"
 
 #include "base/logging.h"
 #import "skia/ext/skia_utils_mac.h"
 
 @interface TitlebarBackgroundView ()
@@ skipping 17 matching lines @@
   base::scoped_nsobject<TitlebarBackgroundView> titlebar_background_view(
       [[TitlebarBackgroundView alloc]
           initWithFrame:NSMakeRect(0, NSMaxY([window_view bounds]) - height,
                                    NSWidth([window_view bounds]), height)]);
   [titlebar_background_view
       setAutoresizingMask:NSViewWidthSizable | NSViewMinYMargin];
   [window_view addSubview:titlebar_background_view
                positioned:NSWindowBelow
                relativeTo:nil];
 
-  [titlebar_background_view setColor:gfx::SkColorToSRGBNSColor(activeColor)
-                       inactiveColor:gfx::SkColorToSRGBNSColor(inactiveColor)];
+  [titlebar_background_view setColor:skia::SkColorToSRGBNSColor(activeColor)
+                       inactiveColor:skia::SkColorToSRGBNSColor(inactiveColor)];
   return titlebar_background_view.autorelease();
 }
 
 - (void)drawRect:(NSRect)rect {
   // Only the top corners are rounded. For simplicity, round all 4 corners but
   // draw the bottom corners outside of the visible bounds.
   CGFloat cornerRadius = 4.0;
   NSRect roundedRect = [self bounds];
   roundedRect.origin.y -= cornerRadius;
   roundedRect.size.height += cornerRadius;
   [[NSBezierPath bezierPathWithRoundedRect:roundedRect
                                    xRadius:cornerRadius
                                    yRadius:cornerRadius] addClip];
   if ([[self window] isMainWindow] || [[self window] isKeyWindow])
     [color_ set];
   else
     [inactiveColor_ set];
   NSRectFill(rect);
 }
 
 - (void)setColor:(NSColor*)color inactiveColor:(NSColor*)inactiveColor {
   color_.reset([color retain]);
   inactiveColor_.reset([inactiveColor retain]);
 }
 
 @end