Add an iframe permissions= attribute for implementing permission delegation

third_party/WebKit/public/web/WebFrameOwnerProperties.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 WebFrameOwnerProperties_h
 #define WebFrameOwnerProperties_h
 
+#include "public/platform/WebVector.h"
+#include "public/platform/modules/permissions/WebPermissionType.h"
+#include <algorithm>
+
 namespace blink {
 
 struct WebFrameOwnerProperties {
     enum class ScrollingMode {
         Auto,
         AlwaysOff,
         AlwaysOn,
         Last = AlwaysOn
     };
 
     ScrollingMode scrollingMode;
     int marginWidth;
     int marginHeight;
     bool allowFullscreen;
+    WebVector<WebPermissionType> delegatedPermissions;
 
     WebFrameOwnerProperties()
         : scrollingMode(ScrollingMode::Auto)
         , marginWidth(-1)
         , marginHeight(-1)
         , allowFullscreen(false)
     {
     }
 
 #if INSIDE_BLINK
-    WebFrameOwnerProperties(ScrollbarMode scrollingMode, int marginWidth, int marginHeight, bool allowFullscreen)
+    WebFrameOwnerProperties(ScrollbarMode scrollingMode, int marginWidth, int marginHeight, bool allowFullscreen, const WebVector<WebPermissionType>& delegatedPermissions)
         : scrollingMode(static_cast<ScrollingMode>(scrollingMode))
         , marginWidth(marginWidth)
         , marginHeight(marginHeight)
         , allowFullscreen(allowFullscreen)
+        , delegatedPermissions(delegatedPermissions)
     {
     }
 #endif
 
     bool operator==(const WebFrameOwnerProperties& other) const
     {
         return scrollingMode == other.scrollingMode
             && marginWidth == other.marginWidth
             && marginHeight == other.marginHeight
-            && allowFullscreen == other.allowFullscreen;
+            && allowFullscreen == other.allowFullscreen
+            && std::equal(delegatedPermissions.begin(),
+                delegatedPermissions.end(),
+                other.delegatedPermissions.begin());
     }
 
     bool operator!=(const WebFrameOwnerProperties& other) const
     {
         return !(*this == other);
     }
 };
 
 } // namespace blink
 
 #endif