Add ability to constrain dominant color selection to a HSL range.

chrome/browser/ui/webui/ntp/favicon_webui_handler.cc

 // Copyright (c) 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.
 
 #include "chrome/browser/ui/webui/ntp/favicon_webui_handler.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/strings/string_split.h"
 #include "base/strings/string_util.h"
@@ skipping 19 matching lines @@
 base::StringValue* SkColorToCss(SkColor color) {
   return new base::StringValue(base::StringPrintf("rgb(%d, %d, %d)",
                                             SkColorGetR(color),
                                             SkColorGetG(color),
                                             SkColorGetB(color)));
 }
 
 base::StringValue* GetDominantColorCssString(
     scoped_refptr<base::RefCountedMemory> png) {
   color_utils::GridSampler sampler;
-  SkColor color =
-      color_utils::CalculateKMeanColorOfPNG(png, 100, 665, &sampler);
+  SkColor color = color_utils::CalculateKMeanColorOfPNG(png);
   return SkColorToCss(color);
 }
 
 }  // namespace
 
 // Thin inheritance-dependent trampoline to forward notification of app
 // icon loads to the FaviconWebUIHandler. Base class does caching of icons.
 class ExtensionIconColorManager : public ExtensionIconManager {
  public:
   explicit ExtensionIconColorManager(FaviconWebUIHandler* handler)
@@ skipping 107 matching lines @@
   if (!gfx::PNGCodec::EncodeBGRASkBitmap(bitmap, true, &bits))
     return;
   scoped_refptr<base::RefCountedStaticMemory> bits_mem(
       new base::RefCountedStaticMemory(&bits.front(), bits.size()));
   scoped_ptr<base::StringValue> color_value(
       GetDominantColorCssString(bits_mem));
   base::StringValue id(extension_id);
   web_ui()->CallJavascriptFunction(
       "ntp.setFaviconDominantColor", id, *color_value);
 }