cc: Improve texture per second calculation and overhead

cc/texture_uploader.h

 // Copyright 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.
 
 #ifndef CC_TEXTURE_UPLOADER_H_
 #define CC_TEXTURE_UPLOADER_H_
 
 #include "IntRect.h"
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "cc/scoped_ptr_deque.h"
-#include <deque>
+#include <set>
 #include "third_party/khronos/GLES2/gl2.h"
 
 namespace WebKit {
 class WebGraphicsContext3D;
 }
 
 namespace cc {
 
 class TextureUploader {
 public:
@@ skipping 57 matching lines @@
                                GLenum format);
     void uploadWithMapTexSubImage(const uint8_t* image,
                                   const IntRect& image_rect,
                                   const IntRect& source_rect,
                                   const IntSize& dest_offset,
                                   GLenum format);
 
     WebKit::WebGraphicsContext3D* m_context;
     ScopedPtrDeque<Query> m_pendingQueries;
     ScopedPtrDeque<Query> m_availableQueries;
-    std::deque<double> m_texturesPerSecondHistory;
+    std::multiset<double> m_texturesPerSecondHistory;
     size_t m_numBlockingTextureUploads;
 
     bool m_useMapTexSubImage;
     size_t m_subImageSize;
     scoped_array<uint8_t> m_subImage;
 
     DISALLOW_COPY_AND_ASSIGN(TextureUploader);
 };
 
 }  // namespace cc
 
 #endif  // CC_TEXTURE_UPLOADER_H_