[ios] Adds GoogleLogoService to help with fetching doodles.

ios/chrome/browser/google/google_logo_service_factory.mm

 // Copyright 2015 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 "ios/chrome/browser/favicon/ios_chrome_large_icon_cache_factory.h"
+#include "ios/chrome/browser/google/google_logo_service_factory.h"
 
 #include "base/memory/ptr_util.h"
 #include "base/memory/singleton.h"
 #include "components/keyed_service/ios/browser_state_dependency_manager.h"
 #include "ios/chrome/browser/browser_state/browser_state_otr_helper.h"
 #include "ios/chrome/browser/browser_state/chrome_browser_state.h"
-#include "ios/chrome/browser/favicon/large_icon_cache.h"
+#include "ios/chrome/browser/google/google_logo_service.h"
 
 // static
-LargeIconCache* IOSChromeLargeIconCacheFactory::GetForBrowserState(
+GoogleLogoService* GoogleLogoServiceFactory::GetForBrowserState(
     ios::ChromeBrowserState* browser_state) {
-  return static_cast<LargeIconCache*>(
+  return static_cast<GoogleLogoService*>(
       GetInstance()->GetServiceForBrowserState(browser_state, true));
 }
 
 // static
-IOSChromeLargeIconCacheFactory* IOSChromeLargeIconCacheFactory::GetInstance() {
-  return base::Singleton<IOSChromeLargeIconCacheFactory>::get();
+GoogleLogoServiceFactory* GoogleLogoServiceFactory::GetInstance() {
+  return base::Singleton<GoogleLogoServiceFactory>::get();
 }
 
-IOSChromeLargeIconCacheFactory::IOSChromeLargeIconCacheFactory()
+GoogleLogoServiceFactory::GoogleLogoServiceFactory()
     : BrowserStateKeyedServiceFactory(
-          "LargeIconCache",
+          "GoogleLogoService",
           BrowserStateDependencyManager::GetInstance()) {}
 
-IOSChromeLargeIconCacheFactory::~IOSChromeLargeIconCacheFactory() {}
+GoogleLogoServiceFactory::~GoogleLogoServiceFactory() {}
 
-std::unique_ptr<KeyedService>
-IOSChromeLargeIconCacheFactory::BuildServiceInstanceFor(
+std::unique_ptr<KeyedService> GoogleLogoServiceFactory::BuildServiceInstanceFor(
     web::BrowserState* context) const {
-  return base::WrapUnique(new LargeIconCache);
+  ios::ChromeBrowserState* browser_state =
+      ios::ChromeBrowserState::FromBrowserState(context);
+  return base::MakeUnique<GoogleLogoService>(browser_state);
 }
 
-web::BrowserState* IOSChromeLargeIconCacheFactory::GetBrowserStateToUse(
+web::BrowserState* GoogleLogoServiceFactory::GetBrowserStateToUse(
     web::BrowserState* context) const {
   return GetBrowserStateOwnInstanceInIncognito(context);
 }