Fix login visual hitch on chromebook

chrome/browser/chromeos/login/user_image_loader.h

Index: chrome/browser/chromeos/login/user_image_loader.h
diff --git a/chrome/browser/chromeos/login/user_image_loader.h b/chrome/browser/chromeos/login/user_image_loader.h
index a5a8b4589c29016c79a2a2b9351f7516f923e010..aff547565be78096a0bab016fb39462a144a0c00 100644
--- a/chrome/browser/chromeos/login/user_image_loader.h
+++ b/chrome/browser/chromeos/login/user_image_loader.h
@@ -11,6 +11,7 @@
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
+#include "base/threading/sequenced_worker_pool.h"
 #include "chrome/browser/image_decoder.h"
 
 class MessageLoop;
@@ -40,6 +41,9 @@ class UserImageLoader : public base::RefCountedThreadSafe<UserImageLoader>,
  private:
   friend class base::RefCountedThreadSafe<UserImageLoader>;
 
+  // Token name for user image loader.
+  static const char* kUserImageLoaderTokenName;

[Nikita (slow), 2013/01/18 16:40:13]

static const char kUserImageLoaderTokenName[]

[Joao da Silva, 2013/01/18 17:24:58]

This could also be hidden in the .cc file, in an anonymous namespace.

+
   // Contains attributes we need to know about each image we decode.
   struct ImageInfo {
     ImageInfo(int size, const LoadedCallback& loaded_cb);
@@ -72,6 +76,8 @@ class UserImageLoader : public base::RefCountedThreadSafe<UserImageLoader>,
   // Accessed only on FILE thread.
   ImageInfoMap image_info_map_;
 
+  base::SequencedWorkerPool::SequenceToken sequence_token_;
+
   DISALLOW_COPY_AND_ASSIGN(UserImageLoader);
 };