Clean up CreateTransposedBtmap.

The function started to show up in valgrind reports. It's unlikely this
change will improve this.

BUG=103391
TEST=none
TBR=sky

Review URL: http://codereview.chromium.org/8501013

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@109081 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 4 insertions, 4 deletions

diff --git a/ui/gfx/skbitmap_operations.cc b/ui/gfx/skbitmap_operations.cc
index 3b2c86e..760bd60 100644
--- a/ui/gfx/skbitmap_operations.cc
+++ b/ui/gfx/skbitmap_operations.cc
@@ -1,4 +1,4 @@
-// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 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.
 
@@ -718,13 +718,13 @@ SkBitmap SkBitmapOperations::UnPreMultiply(const SkBitmap& bitmap) {
 SkBitmap SkBitmapOperations::CreateTransposedBtmap(const SkBitmap& image) {
   DCHECK(image.config() == SkBitmap::kARGB_8888_Config);
 
-  SkAutoLockPixels lock_image(image);
-
   SkBitmap transposed;
   transposed.setConfig(
       SkBitmap::kARGB_8888_Config, image.height(), image.width(), 0);
   transposed.allocPixels();
-  transposed.eraseARGB(0, 0, 0, 0);
+
+  SkAutoLockPixels lock_image(image);
+  SkAutoLockPixels lock_transposed(transposed);
 
   for (int y = 0; y < image.height(); ++y) {
     uint32* image_row = image.getAddr32(0, y);