Use proper namespace in skia/ext

chrome/browser/ui/cocoa/omnibox/omnibox_popup_cell.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/omnibox/omnibox_popup_cell.h"
 
 #include <algorithm>
 #include <cmath>
 
 #include "base/i18n/rtl.h"
@@ skipping 45 matching lines @@
   return [NSColor controlHighlightColor];
 }
 
 NSColor* ContentTextColor() {
   return [NSColor blackColor];
 }
 NSColor* DimTextColor() {
   return [NSColor darkGrayColor];
 }
 NSColor* PositiveTextColor() {
-  return gfx::SkColorToCalibratedNSColor(SkColorSetRGB(0x0b, 0x80, 0x43));
+  return skia::SkColorToCalibratedNSColor(SkColorSetRGB(0x0b, 0x80, 0x43));
 }
 NSColor* NegativeTextColor() {
-  return gfx::SkColorToCalibratedNSColor(SkColorSetRGB(0xc5, 0x39, 0x29));
+  return skia::SkColorToCalibratedNSColor(SkColorSetRGB(0xc5, 0x39, 0x29));
 }
 NSColor* URLTextColor() {
   return [NSColor colorWithCalibratedRed:0.0 green:0.55 blue:0.0 alpha:1.0];
 }
 
 NSFont* FieldFont() {
   return OmniboxViewMac::GetFieldFont(gfx::Font::NORMAL);
 }
 NSFont* BoldFieldFont() {
   return OmniboxViewMac::GetFieldFont(gfx::Font::BOLD);
@@ skipping 543 matching lines @@
   return base::i18n::IsRTL() ? (inputWidth - glyphOffset) : glyphOffset;
 }
 
 + (NSAttributedString*)createSeparatorString {
   base::string16 raw_separator =
       l10n_util::GetStringUTF16(IDS_AUTOCOMPLETE_MATCH_DESCRIPTION_SEPARATOR);
   return CreateAttributedString(raw_separator, DimTextColor());
 }
 
 @end