Use proper namespace in skia/ext

chrome/browser/ui/cocoa/autofill/autofill_section_view.mm

 // Copyright 2013 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/autofill/autofill_section_view.h"
 
 #import "chrome/browser/ui/chrome_style.h"
 #include "skia/ext/skia_utils_mac.h"
 
 namespace {
@@ skipping 26 matching lines @@
 
 - (void)drawRect:(NSRect)dirtyRect {
   if (shouldHighlightOnHover_ && isHighlighted_) {
     [[self hoverColor] set];
     NSRectFill([self bounds]);
   }
 }
 
 - (NSColor*)hoverColor {
   // Shading color is specified as a alpha component color, so premultiply.
-  NSColor* shadingColor = gfx::SkColorToCalibratedNSColor(kShadingColor);
+  NSColor* shadingColor = skia::SkColorToCalibratedNSColor(kShadingColor);
   NSColor* blendedColor = [[[self window] backgroundColor]
       blendedColorWithFraction:[shadingColor alphaComponent]
                        ofColor:shadingColor];
   return [blendedColor colorWithAlphaComponent:1.0];
 }
 
 - (void)setShouldHighlightOnHover:(BOOL)shouldHighlight {
   if (shouldHighlight == shouldHighlightOnHover_)
     return;
   shouldHighlightOnHover_ = shouldHighlight;
   [self setNeedsDisplay:YES];
 }
 
 - (void)setIsHighlighted:(BOOL)isHighlighted {
   isHighlighted_ = isHighlighted;
   if (shouldHighlightOnHover_)
     [self setNeedsDisplay:YES];
 }
 
 @end