Give SelectFaviconFrames a quality score.

chrome/browser/favicon/favicon_handler_unittest.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 "base/memory/scoped_ptr.h"
 #include "chrome/browser/favicon/favicon_handler.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/test/base/chrome_render_view_host_test_harness.h"
 #include "content/public/browser/invalidate_type.h"
 #include "content/public/browser/navigation_entry.h"
@@ skipping 283 matching lines @@
     callback_.Run(0, favicon_data_);
 }
 
 void DownloadHandler::InvokeCallback() {
   SkBitmap bitmap;
   int bitmap_size = (download_->image_size > 0) ?
       download_->image_size : gfx::kFaviconSize;
   FillDataToBitmap(bitmap_size, bitmap_size, &bitmap);
   gfx::Image image(bitmap);
   favicon_helper_->OnDidDownloadFavicon(
-      download_->download_id, download_->image_url, failed_, image);
+      download_->download_id, download_->image_url, failed_, image,
+      download_->image_size == gfx::kFaviconSize);
 }
 
 class FaviconHandlerTest : public ChromeRenderViewHostTestHarness {
 };
 
 TEST_F(FaviconHandlerTest, GetFaviconFromHistory) {
   const GURL page_url("http://www.google.com");
   const GURL icon_url("http://www.google.com/favicon");
 
   TestFaviconHandlerDelegate delegate(contents());
@@ skipping 633 matching lines @@
 
   // Verify correct icon size chosen.
   EXPECT_EQ(icon_url_preferred1, handler.GetEntry()->GetFavicon().url);
   EXPECT_TRUE(handler.GetEntry()->GetFavicon().valid);
   EXPECT_FALSE(handler.GetEntry()->GetFavicon().image.IsEmpty());
   EXPECT_EQ(gfx::kFaviconSize,
             handler.GetEntry()->GetFavicon().image.ToSkBitmap()->width());
 }
 
 }  // namespace.