[Refactor] Change FaviconService API to take in a desired pixel size

chrome/browser/android/favicon_helper.h

 // 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.
 
 #ifndef CHROME_BROWSER_ANDROID_FAVICON_HELPER_H_
 #define CHROME_BROWSER_ANDROID_FAVICON_HELPER_H_
 
 #include <jni.h>
 
 #include "base/android/scoped_java_ref.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/task/cancelable_task_tracker.h"
 
 class FaviconHelper {
  public:
   FaviconHelper();
   void Destroy(JNIEnv* env, jobject obj);
   jboolean GetLocalFaviconImageForURL(JNIEnv* env,
                                       jobject obj,
                                       jobject j_profile,
                                       jstring j_page_url,
                                       jint j_icon_types,
-                                      jint j_desired_size_in_dip,
+                                      jint j_desired_size_in_pixel,
                                       jobject j_favicon_image_callback);
   void GetLargestRawFaviconForUrl(JNIEnv* env,
                                   jobject obj,
                                   jobject j_profile,
                                   jstring j_page_url,
                                   jintArray j_icon_types,
                                   jint j_min_size_threshold_px,
                                   jobject j_favicon_image_callback);
   base::android::ScopedJavaLocalRef<jobject> GetSyncedFaviconImageForURL(
       JNIEnv* env,
       jobject obj,
       jobject jprofile,
       jstring j_page_url);
   static bool RegisterFaviconHelper(JNIEnv* env);
 
  private:
   scoped_ptr<base::CancelableTaskTracker> cancelable_task_tracker_;
 
   virtual ~FaviconHelper();
 
   DISALLOW_COPY_AND_ASSIGN(FaviconHelper);
 };
 
 #endif  // CHROME_BROWSER_ANDROID_FAVICON_HELPER_H_