Implement HasPermission() method in PermissionService.

content/browser/permissions/permission_service_context.h

Index: content/browser/permissions/permission_service_context.h
diff --git a/content/browser/permissions/permission_service_context.h b/content/browser/permissions/permission_service_context.h
index 46d6b397026a2ff26d577d6dfe8bff40d8209322..70573581bc8e44061d4864bfe102753a554cd3c8 100644
--- a/content/browser/permissions/permission_service_context.h
+++ b/content/browser/permissions/permission_service_context.h
@@ -15,6 +15,7 @@ namespace content {
 class PermissionService;
 class PermissionServiceImpl;
 class RenderFrameHost;
+class RenderProcessHost;
 
 // Provides information to a PermissionService. It is used by the
 // PermissionService to handle request permission UI.
@@ -23,6 +24,7 @@ class RenderFrameHost;
 class PermissionServiceContext : public WebContentsObserver {
  public:
   explicit PermissionServiceContext(RenderFrameHost* render_frame_host);
+  explicit PermissionServiceContext(RenderProcessHost* render_process_host);
   virtual ~PermissionServiceContext();
 
   void CreateService(mojo::InterfaceRequest<PermissionService> request);
@@ -31,6 +33,8 @@ class PermissionServiceContext : public WebContentsObserver {
   // connection error in order to get unregistered and killed.
   void ServiceHadConnectionError(PermissionServiceImpl* service);
 
+  BrowserContext* GetBrowserContext() const;
+
  private:
   // WebContentsObserver
   void RenderFrameDeleted(RenderFrameHost* render_frame_host) override;
@@ -41,6 +45,7 @@ class PermissionServiceContext : public WebContentsObserver {
   void CancelPendingRequests(RenderFrameHost*) const;
 
   RenderFrameHost* render_frame_host_;
+  RenderProcessHost* render_process_host_;
   ScopedVector<PermissionServiceImpl> services_;
 
   DISALLOW_COPY_AND_ASSIGN(PermissionServiceContext);