Use asynchronized api for file system request. [blink] (3/4)

public/web/WebPermissionClient.h

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 13 matching lines @@
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef WebPermissionClient_h
 #define WebPermissionClient_h
 
+#include "public/platform/WebPermissionCallbacks.h"
+
 namespace blink {
 
 class WebDocument;
-class WebPermissionCallbacks;
 class WebSecurityOrigin;
 class WebString;
 class WebURL;
 
 class WebPermissionClient {
 public:
     // Controls whether access to Web Databases is allowed for this frame.
     virtual bool allowDatabase(const WebString& name, const WebString& displayName, unsigned long estimatedSize) { return true; }
 
     // Controls whether access to File System is allowed for this frame.
-    virtual bool allowFileSystem() { return true; }
+    virtual bool requestFileSystemAccessSync() { return true; }
 
-    virtual void requestFileSystemAccess(const WebPermissionCallbacks& callbacks) { }
+    // Controls whether access to File System is allowed for this frame.
+    virtual void requestFileSystemAccessAsync(const WebPermissionCallbacks& callbacks) { WebPermissionCallbacks permissionCallbacks(callbacks); permissionCallbacks.doAllow(); }

[Xi Han, 2014/05/20 16:13:32]

Add default implementation here.

 
     // Controls whether images are allowed for this frame.
     virtual bool allowImage(bool enabledPerSettings, const WebURL& imageURL) { return enabledPerSettings; }
 
     // Controls whether access to Indexed DB are allowed for this frame.
     virtual bool allowIndexedDB(const WebString& name, const WebSecurityOrigin&) { return true; }
 
     // Controls whether plugins are allowed for this frame.
     virtual bool allowPlugins(bool enabledPerSettings) { return enabledPerSettings; }
 
@@ skipping 48 matching lines @@
     // Notifies the client that the frame would have executed script if script were enabled.
     virtual void didNotAllowScript() { }
 
 protected:
     ~WebPermissionClient() { }
 };
 
 } // namespace blink
 
 #endif