Use proper namespace in skia/ext

ui/app_list/cocoa/app_list_view_controller.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 "ui/app_list/cocoa/app_list_view_controller.h"
 
 #include "base/mac/foundation_util.h"
 #include "base/mac/mac_util.h"
 #include "base/strings/string_util.h"
 #include "base/strings/sys_string_conversions.h"
@@ skipping 43 matching lines @@
   NSRect boundsRect = [self bounds];
   NSRect searchAreaRect = NSMakeRect(0, 0,
                                      NSWidth(boundsRect), kSearchInputHeight);
   NSRect separatorRect = NSMakeRect(0, NSMaxY(searchAreaRect),
                                     NSWidth(boundsRect), kTopSeparatorSize);
 
   [[NSBezierPath bezierPathWithRoundedRect:boundsRect
                                    xRadius:kBubbleCornerRadius
                                    yRadius:kBubbleCornerRadius] addClip];
 
-  [gfx::SkColorToSRGBNSColor(app_list::kContentsBackgroundColor) set];
+  [skia::SkColorToSRGBNSColor(app_list::kContentsBackgroundColor) set];
   NSRectFill(boundsRect);
-  [gfx::SkColorToSRGBNSColor(app_list::kSearchBoxBackground) set];
+  [skia::SkColorToSRGBNSColor(app_list::kSearchBoxBackground) set];
   NSRectFill(searchAreaRect);
-  [gfx::SkColorToSRGBNSColor(app_list::kTopSeparatorColor) set];
+  [skia::SkColorToSRGBNSColor(app_list::kTopSeparatorColor) set];
   NSRectFill(separatorRect);
 }
 
 @end
 
 @interface AppListViewController ()
 
 - (void)loadAndSetView;
 - (void)revealSearchResults:(BOOL)show;
 
@@ skipping 280 matching lines @@
     delegate_->OpenSearchResult(
         result, false /* auto_launch */, 0 /* event flags */);
   }
 }
 
 - (void)onProfilesChanged {
   [appsSearchBoxController_ rebuildMenu];
 }
 
 @end