★ Record the image dominant color in the image database.

components/enhanced_bookmarks/image_store_util_ios.mm

Index: components/enhanced_bookmarks/image_store_util_ios.mm
diff --git a/components/enhanced_bookmarks/image_store_util_ios.mm b/components/enhanced_bookmarks/image_store_util_ios.mm
index 5d027cbaaaef195aba1b8abe53ee07ef8a81e83b..98a08dbc7f34124de20d5076400ee47c0e7ede11 100644
--- a/components/enhanced_bookmarks/image_store_util_ios.mm
+++ b/components/enhanced_bookmarks/image_store_util_ios.mm
@@ -8,6 +8,8 @@
 
 #include "base/mac/scoped_cftyperef.h"
 #include "base/mac/scoped_nsobject.h"
+#include "third_party/skia/include/core/SkBitmap.h"
+#include "ui/gfx/color_analysis.h"
 
 namespace {
 // An implementation of RefCountedMemory, where the bytes are stored in a
@@ -45,4 +47,8 @@ gfx::Image ImageForBytes(const scoped_refptr<base::RefCountedMemory>& data) {
       [NSData dataWithBytes:data->front() length:data->size()]] retain]);
 }
 
+SkColor DominantColorForImage(const gfx::Image& image) {
+  return color_utils::CalculateKMeanColorOfBitmap(*image.ToSkBitmap());
+}
+
 }  // namespace enhanced_bookmarks