ppapi: PPB_VpnProvider: Implement Service Helper

content/public/browser/content_browser_client.h

 // Copyright (c) 2012 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 CONTENT_PUBLIC_BROWSER_CONTENT_BROWSER_CLIENT_H_
 #define CONTENT_PUBLIC_BROWSER_CONTENT_BROWSER_CLIENT_H_
 
 #include <stddef.h>
 
 #include <map>
@@ skipping 102 matching lines @@
 class PresentationServiceDelegate;
 class QuotaPermissionContext;
 class RenderFrameHost;
 class RenderProcessHost;
 class RenderViewHost;
 class ResourceContext;
 class ServiceRegistry;
 class SiteInstance;
 class SpeechRecognitionManagerDelegate;
 class TracingDelegate;
+class VpnServiceProxy;
 class WebContents;
 class WebContentsViewDelegate;
 struct MainFunctionParams;
 struct OpenURLParams;
 struct Referrer;
 struct WebPreferences;
 
 // Embedder API (or SPI) for participating in browser logic, to be implemented
 // by the client of the content browser. See ChromeContentBrowserClient for the
 // principal implementation. The methods are assumed to be called on the UI
@@ skipping 447 matching lines @@
   virtual bool AllowPepperSocketAPI(BrowserContext* browser_context,
                                     const GURL& url,
                                     bool private_api,
                                     const SocketPermissionRequest* params);
 
   // Returns true if the "vpnProvider" permission is allowed from the given
   // |browser_context| and |url|.
   virtual bool IsPepperVpnProviderAPIAllowed(BrowserContext* browser_context,
                                              const GURL& url);
 
+  // Creates a new VpnServiceProxy. The caller owns the returned value. It's

[piman, 2016/06/16 00:27:09]

Please return a std::unique_ptr<VpnServiceProxy> to carry the ownership
semantics.

[adrian.belgun, 2016/06/16 12:05:28]

Done.

+  // valid to return nullptr.
+  virtual VpnServiceProxy* GetVpnServiceProxy(BrowserContext* browser_context);
+
   // Returns an implementation of a file selecition policy. Can return nullptr.
   virtual ui::SelectFilePolicy* CreateSelectFilePolicy(
       WebContents* web_contents);
 
   // Returns additional allowed scheme set which can access files in
   // FileSystem API.
   virtual void GetAdditionalAllowedSchemesForFileSystem(
       std::vector<std::string>* additional_schemes) {}
 
   // |schemes| is a return value parameter that gets a whitelist of schemes that
@@ skipping 178 matching lines @@
   // Allows an embedder to provide its own ExternalVideoSurfaceContainer
   // implementation.  Return nullptr to disable external surface video.
   virtual ExternalVideoSurfaceContainer*
   OverrideCreateExternalVideoSurfaceContainer(WebContents* web_contents);
 #endif
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_CONTENT_BROWSER_CLIENT_H_