[Content suggestions] Add a function to the service API to fetch favicons

chrome/browser/android/ntp/ntp_snippets_bridge.h

 // Copyright 2016 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_NTP_NTP_SNIPPETS_BRIDGE_H_
 #define CHROME_BROWSER_ANDROID_NTP_NTP_SNIPPETS_BRIDGE_H_
 
 #include <jni.h>
 
 #include "base/android/scoped_java_ref.h"
@@ skipping 42 matching lines @@
       const base::android::JavaParamRef<jobject>& obj,
       jint j_category_id);
 
   void FetchSuggestionImage(
       JNIEnv* env,
       const base::android::JavaParamRef<jobject>& obj,
       jint j_category_id,
       const base::android::JavaParamRef<jstring>& id_within_category,
       const base::android::JavaParamRef<jobject>& j_callback);
 
+  void FetchSuggestionFavicon(
+      JNIEnv* env,
+      const base::android::JavaParamRef<jobject>& obj,
+      jint j_category_id,
+      const base::android::JavaParamRef<jstring>& id_within_category,
+      jint j_minimum_size_px,
+      jint j_desired_size_px,
+      const base::android::JavaParamRef<jobject>& j_callback);
+
   void Fetch(
       JNIEnv* env,
       const base::android::JavaParamRef<jobject>& obj,
       jint j_category_id,
       const base::android::JavaParamRef<jobjectArray>& j_displayed_suggestions);
 
   void ReloadSuggestions(JNIEnv* env,
                          const base::android::JavaParamRef<jobject>& obj);
 
   void DismissSuggestion(
@@ skipping 95 matching lines @@
 
   // The Java SnippetsBridge.
   base::android::ScopedJavaGlobalRef<jobject> bridge_;
 
   base::WeakPtrFactory<NTPSnippetsBridge> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(NTPSnippetsBridge);
 };
 
 #endif  // CHROME_BROWSER_ANDROID_NTP_NTP_SNIPPETS_BRIDGE_H_