Use proper namespace in skia/ext

chrome/browser/ui/cocoa/one_click_signin_view_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/one_click_signin_view_controller.h"
 
 #include "base/callback_helpers.h"
 #include "base/logging.h"
 #include "base/mac/bundle_locations.h"
 #import "chrome/browser/ui/chrome_style.h"
@@ skipping 122 matching lines @@
 }
 
 - (void)awakeFromNib {
   // Lay out the text controls from the bottom up.
   CGFloat totalYOffset = 0.0;
 
   if ([errorMessage_ length] == 0) {
     totalYOffset +=
         [GTMUILocalizerAndLayoutTweaker sizeToFitView:advancedLink_].height;
     [[advancedLink_ cell] setTextColor:
-        gfx::SkColorToCalibratedNSColor(chrome_style::GetLinkColor())];
+        skia::SkColorToCalibratedNSColor(chrome_style::GetLinkColor())];
   } else {
     // Don't display the advanced link for the error bubble.
     // To align the Learn More link with the OK button, we need to offset by
     // the height of the Advanced link, plus the padding between it and the
     // Learn More link above.
     float advancedLinkHeightPlusPadding =
         [informativePlaceholderTextField_ frame].origin.y -
         [advancedLink_ frame].origin.y;
 
     totalYOffset -= advancedLinkHeightPlusPadding;
@@ skipping 88 matching lines @@
   if (isSyncDialog_) {
     messageText = l10n_util::GetNSStringFWithFixup(
         IDS_ONE_CLICK_SIGNIN_DIALOG_MESSAGE_NEW, email_);
     learnMoreOffset = [messageText length];
     messageText = [messageText stringByAppendingFormat:@" %@", learnMoreText];
   } else {
     messageText = learnMoreText;
   }
 
   NSColor* linkColor =
-      gfx::SkColorToCalibratedNSColor(chrome_style::GetLinkColor());
+      skia::SkColorToCalibratedNSColor(chrome_style::GetLinkColor());
   [informativeTextView_ setMessage:messageText
                           withFont:font
                       messageColor:[NSColor blackColor]];
   [informativeTextView_ addLinkRange:NSMakeRange(learnMoreOffset,
                                                  [learnMoreText length])
                              withURL:@(chrome::kChromeSyncLearnMoreURL)
                            linkColor:linkColor];
 
   // Make the "Advanced" link font as large as the "Learn More" link.
   [[advancedLink_ cell] setFont:font];
@@ skipping 40 matching lines @@
 
 @end
 
 @implementation OneClickSigninViewController (TestingAPI)
 
 - (NSTextView*)linkViewForTesting {
   return informativeTextView_.get();
 }
 
 @end