SkBitmap and SkPixelRef no longer need lock/unlock

chrome/browser/extensions/extension_action_storage_manager.cc

 // Copyright 2014 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 "chrome/browser/extensions/extension_action_storage_manager.h"
 
 #include <stdint.h>
 
 #include <memory>
 #include <utility>
@@ skipping 62 matching lines @@
     return false;
 
   bool success = gfx::PNGCodec::Decode(
       reinterpret_cast<unsigned const char*>(raw_str.data()), raw_str.size(),
       bitmap);
   return success;
 }
 
 // Conversion function for reading/writing to storage.
 std::string BitmapToString(const SkBitmap& bitmap) {
-  SkAutoLockPixels lock_image(bitmap);
   std::vector<unsigned char> data;
   bool success = gfx::PNGCodec::EncodeBGRASkBitmap(bitmap, false, &data);
   if (!success)
     return std::string();
 
   base::StringPiece raw_str(
       reinterpret_cast<const char*>(&data[0]), data.size());
   std::string base64_str;
   base::Base64Encode(raw_str, &base64_str);
   return base64_str;
@@ skipping 183 matching lines @@
     return;
 
   SetDefaultsFromValue(dict, browser_action);
 }
 
 StateStore* ExtensionActionStorageManager::GetStateStore() {
   return ExtensionSystem::Get(browser_context_)->state_store();
 }
 
 }  // namespace extensions