Remove unused function for extracting colors from a favicon on Android.

chrome/browser/android/favicon_helper.cc

 // Copyright 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.
 
 #include "chrome/browser/android/favicon_helper.h"
 
 #include <jni.h>
 #include <stddef.h>
 
 #include <vector>
@@ skipping 12 matching lines @@
 #include "components/browser_sync/profile_sync_service.h"
 #include "components/favicon/core/favicon_service.h"
 #include "components/favicon/core/favicon_util.h"
 #include "components/favicon_base/favicon_util.h"
 #include "components/sync_sessions/open_tabs_ui_delegate.h"
 #include "content/public/browser/web_contents.h"
 #include "jni/FaviconHelper_jni.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/gfx/android/java_bitmap.h"
 #include "ui/gfx/codec/png_codec.h"
-#include "ui/gfx/color_analysis.h"
 #include "ui/gfx/color_utils.h"
 #include "ui/gfx/image/image_skia.h"
 #include "ui/gfx/image/image_skia_rep.h"
 
 using base::android::JavaParamRef;
 using base::android::JavaRef;
 using base::android::ScopedJavaGlobalRef;
 using base::android::ScopedJavaLocalRef;
 using base::android::AttachCurrentThread;
 using base::android::ConvertJavaStringToUTF16;
@@ skipping 134 matching lines @@
       web_contents, page_url, icon_url, icon_type, j_is_temporary);
   favicon::FaviconService* service = FaviconServiceFactory::GetForProfile(
       profile, ServiceAccessType::IMPLICIT_ACCESS);
   favicon::GetFaviconImageForPageURL(service, page_url, icon_type,
                                      callback_runner,
                                      cancelable_task_tracker_.get());
 }
 
 FaviconHelper::~FaviconHelper() {}
 
-static jint GetDominantColorForBitmap(JNIEnv* env,
-                                      const JavaParamRef<jclass>& clazz,
-                                      const JavaParamRef<jobject>& bitmap) {
-  if (!bitmap)
-    return 0;
-
-  gfx::JavaBitmap bitmap_lock(bitmap);
-  SkBitmap skbitmap = gfx::CreateSkBitmapFromJavaBitmap(bitmap_lock);
-  return color_utils::CalculateKMeanColorOfBitmap(skbitmap);
-}
-
-// static
-
 // Return the index of |sizes| whose area is largest but not exceeds int type
 // range. If all |sizes|'s area exceed int type range, return the first one.
 size_t FaviconHelper::GetLargestSizeIndex(const std::vector<gfx::Size>& sizes) {
   DCHECK(!sizes.empty());
   size_t ret = 0;
   // Find the first element whose area doesn't exceed max value, then use it
   // to compare with rest elements to find largest size index.
   for (size_t i = 0; i < sizes.size(); ++i) {
     base::CheckedNumeric<int> checked_area = sizes[i].GetCheckedArea();
     if (checked_area.IsValid()) {
@@ skipping 63 matching lines @@
 
   web_contents->DownloadImage(
       icon_url, true, 0, false,
       base::Bind(&FaviconHelper::OnFaviconDownloaded, j_availability_callback,
                  profile, page_url, icon_type, is_temporary));
 }
 
 bool FaviconHelper::RegisterFaviconHelper(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }