Move CancelableTaskTracker to //base/task/CancelableTaskTracker.

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 "base/android/jni_android.h"
 #include "base/android/jni_string.h"
@@ skipping 44 matching lines @@
                                                j_icon_url.obj());
 }
 
 }  // namespace
 
 static jlong Init(JNIEnv* env, jclass clazz) {
   return reinterpret_cast<intptr_t>(new FaviconHelper());
 }
 
 FaviconHelper::FaviconHelper() {
-  cancelable_task_tracker_.reset(new CancelableTaskTracker());
+  cancelable_task_tracker_.reset(new base::CancelableTaskTracker());
 }
 
 void FaviconHelper::Destroy(JNIEnv* env, jobject obj) {
   delete this;
 }
 
 jboolean FaviconHelper::GetLocalFaviconImageForURL(
     JNIEnv* env,
     jobject obj,
     jobject j_profile,
@@ skipping 81 matching lines @@
   return color_utils::CalculateKMeanColorOfPNG(
       png_data, min_darkness, max_brightness, &sampler);
 }
 
 FaviconHelper::~FaviconHelper() {}
 
 // static
 bool FaviconHelper::RegisterFaviconHelper(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }