Use proper namespace in skia/ext

skia/ext/skia_utils_mac.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.
 
 #include "skia/ext/skia_utils_mac.h"
 
 #import <AppKit/AppKit.h>
 
 #include "base/logging.h"
 #include "base/mac/scoped_cftyperef.h"
@@ skipping 67 matching lines @@
                     hints:nil];
   }
 
   [NSGraphicsContext restoreGraphicsState];
 
   return bitmap;
 }
 
 } // namespace
 
-namespace gfx {
+namespace skia {
 
 CGAffineTransform SkMatrixToCGAffineTransform(const SkMatrix& matrix) {
   // CGAffineTransforms don't support perspective transforms, so make sure
   // we don't get those.
   DCHECK(matrix[SkMatrix::kMPersp0] == 0.0f);
   DCHECK(matrix[SkMatrix::kMPersp1] == 0.0f);
   DCHECK(matrix[SkMatrix::kMPersp2] == 1.0f);
 
   return CGAffineTransformMake(matrix[SkMatrix::kMScaleX],
                                matrix[SkMatrix::kMSkewY],
@@ skipping 360 matching lines @@
 
   CGContextConcatCTM(cgContext_, SkMatrixToCGAffineTransform(matrix));
   
   return cgContext_;
 }
 
 bool SkiaBitLocker::hasEmptyClipRegion() const {
   return canvas_->isClipEmpty();
 }
 
-}  // namespace gfx
+}  // namespace skia