[ios] Adds OmahaServiceProvider.

ios/public/provider/chrome/browser/chrome_browser_provider.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 IOS_PUBLIC_PROVIDER_CHROME_BROWSER_CHROME_BROWSER_PROVIDER_H_
 #define IOS_PUBLIC_PROVIDER_CHROME_BROWSER_CHROME_BROWSER_PROVIDER_H_
 
 #include <CoreGraphics/CoreGraphics.h>
 #import <Foundation/Foundation.h>
 #include <stddef.h>
 
 #include <memory>
 #include <string>
 #include <vector>
 
 #include "base/callback_forward.h"
 #include "base/memory/ref_counted.h"
 #include "components/favicon_base/favicon_callback.h"
 
 class AppDistributionProvider;
 class AutocompleteProvider;
 class GURL;
 class InfoBarViewDelegate;
+class OmahaServiceProvider;
 class PrefRegistrySimple;
 class PrefService;
 class VoiceSearchProvider;
 
 namespace autofill {
 class CardUnmaskPromptController;
 class CardUnmaskPromptView;
 }
 
 namespace net {
@@ skipping 122 matching lines @@
 
   // Returns an instance of the app distribution provider.
   virtual AppDistributionProvider* GetAppDistributionProvider() const;
 
   // Creates and returns an object that can fetch and vend search engine logos.
   // The caller assumes ownership of the returned object.
   virtual id<LogoVendor> CreateLogoVendor(
       ios::ChromeBrowserState* browser_state,
       id<UrlLoader> loader) const NS_RETURNS_RETAINED;
 
+  // Returns an instance of the omaha service provider.
+  virtual OmahaServiceProvider* GetOmahaServiceProvider() const;
+
   // Returns the SyncedWindowDelegatesGetter implementation.
   virtual std::unique_ptr<sync_sessions::SyncedWindowDelegatesGetter>
   CreateSyncedWindowDelegatesGetter(ios::ChromeBrowserState* browser_state);
 
   // TODO(rohitrao): This is a temporary method, used to prevent the tree from
   // breaking due to duplicate prefs registration.
   virtual bool ShouldEmbedderRegisterVoiceSearchPrefs() const;
 };
 
 }  // namespace ios
 
 #endif  // IOS_PUBLIC_PROVIDER_CHROME_BROWSER_CHROME_BROWSER_PROVIDER_H_