★ Record the image dominant color in the image database.

components/enhanced_bookmarks/image_store_util.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 "components/enhanced_bookmarks/image_store_util.h"
 
+#include "third_party/skia/include/core/SkBitmap.h"
+#include "ui/gfx/color_analysis.h"
 #include "ui/gfx/image/image_skia.h"
 #include "ui/gfx/image/image_util.h"
 
 namespace {
 const int kJpegEncodingQuality = 70;
 }  // namespace
 
 namespace enhanced_bookmarks {
 
 scoped_refptr<base::RefCountedMemory> BytesForImage(const gfx::Image& image) {
   DCHECK(image.AsImageSkia().image_reps().size() == 1);
   DCHECK(image.AsImageSkia().image_reps().begin()->scale() == 1.0f);
 
   std::vector<unsigned char> data;
   bool succeeded =
       gfx::JPEG1xEncodedDataFromImage(image, kJpegEncodingQuality, &data);
 
   if (!succeeded)
     return scoped_refptr<base::RefCountedMemory>();
 
   return scoped_refptr<base::RefCountedMemory>(new base::RefCountedBytes(data));
 }
 
 gfx::Image ImageForBytes(const scoped_refptr<base::RefCountedMemory>& bytes) {
   return gfx::ImageFrom1xJPEGEncodedData(bytes->front(), bytes->size());
 }
+
+SkColor DominantColorForImage(const gfx::Image& image) {
+  return color_utils::CalculateKMeanColorOfBitmap(*image.ToSkBitmap());
 }
+}