cc: Add checker-imaging support to TileManager.

skia/ext/skia_utils_base.h

 // Copyright (c) 2013 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 SKIA_EXT_SKIA_UTILS_BASE_H_
 #define SKIA_EXT_SKIA_UTILS_BASE_H_
 
 #include "base/pickle.h"
+#include "third_party/skia/include/core/SkImage.h"
+#include "third_party/skia/include/core/SkSurfaceProps.h"
 #include "third_party/skia/include/ports/SkFontConfigInterface.h"
-#include "third_party/skia/include/core/SkSurfaceProps.h"
 
 namespace skia {
 
 // Return true if the pickle/iterator contains a string. If so, and if str
 // is not null, copy that string into str.
 SK_API bool ReadSkString(base::PickleIterator* iter, SkString* str);
 
 // Return true if the pickle/iterator contains a FontIdentity. If so, and if
 // identity is not null, copy it into identity.
 SK_API bool ReadSkFontIdentity(base::PickleIterator* iter,
@@ skipping 10 matching lines @@
 SK_API bool WriteSkFontIdentity(
     base::Pickle* pickle,
     const SkFontConfigInterface::FontIdentity& identity);
 
 // Return true if str can be written into the request pickle.
 SK_API bool WriteSkFontStyle(base::Pickle* pickle, SkFontStyle style);
 
 // Determine the default pixel geometry (for LCD) by querying the font host
 SK_API SkPixelGeometry ComputeDefaultPixelGeometry();
 
+// Uses safe math to compute and return the size of |image|.
+SK_API size_t SafeSizeOfImage(const SkImage* image);
+
 }  // namespace skia
 
 #endif  // SKIA_EXT_SKIA_UTILS_BASE_H_