[ios] Adds GoogleLogoService to help with fetching doodles.

ios/chrome/browser/google/google_logo_service_factory.h

 // 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.
 
-#ifndef IOS_CHROME_BROWSER_FAVICON_IOS_CHROME_LARGE_ICON_CACHE_FACTORY_H_
-#define IOS_CHROME_BROWSER_FAVICON_IOS_CHROME_LARGE_ICON_CACHE_FACTORY_H_
+#ifndef IOS_CHROME_BROWSER_GOOGLE_GOOGLE_LOGO_SERVICE_FACTORY_H_
+#define IOS_CHROME_BROWSER_GOOGLE_GOOGLE_LOGO_SERVICE_FACTORY_H_
 
 #include <memory>
 
 #include "base/macros.h"
 #include "components/keyed_service/ios/browser_state_keyed_service_factory.h"
 
-class KeyedService;
-class LargeIconCache;
-
 namespace base {
 template <typename T>
 struct DefaultSingletonTraits;
-}
+}  // namespace base
 
 namespace ios {
 class ChromeBrowserState;
 }
 
-// Singleton that owns all LargeIconCaches and associates them with
+class KeyedService;
+class GoogleLogoService;
+
+// Singleton that owns all GoogleLogoServices and associates them with
 // ChromeBrowserState.
-class IOSChromeLargeIconCacheFactory : public BrowserStateKeyedServiceFactory {
+class GoogleLogoServiceFactory : public BrowserStateKeyedServiceFactory {
  public:
-  static LargeIconCache* GetForBrowserState(
+  static GoogleLogoService* GetForBrowserState(
       ios::ChromeBrowserState* browser_state);
 
-  static IOSChromeLargeIconCacheFactory* GetInstance();
+  static GoogleLogoServiceFactory* GetInstance();
 
  private:
-  friend struct base::DefaultSingletonTraits<IOSChromeLargeIconCacheFactory>;
+  friend struct base::DefaultSingletonTraits<GoogleLogoServiceFactory>;
 
-  IOSChromeLargeIconCacheFactory();
-  ~IOSChromeLargeIconCacheFactory() override;
+  GoogleLogoServiceFactory();
+  ~GoogleLogoServiceFactory() override;
 
   // BrowserStateKeyedServiceFactory implementation.
   std::unique_ptr<KeyedService> BuildServiceInstanceFor(
       web::BrowserState* context) const override;
   web::BrowserState* GetBrowserStateToUse(
       web::BrowserState* context) const override;
 
-  DISALLOW_COPY_AND_ASSIGN(IOSChromeLargeIconCacheFactory);
+  DISALLOW_COPY_AND_ASSIGN(GoogleLogoServiceFactory);
 };
 
-#endif  // IOS_CHROME_BROWSER_FAVICON_IOS_CHROME_LARGE_ICON_CACHE_FACTORY_H_
+#endif  // IOS_CHROME_BROWSER_GOOGLE_GOOGLE_LOGO_SERVICE_FACTORY_H_