Add an iframe permissions= attribute for implementing permission delegation

third_party/WebKit/public/web/WebFrameOwnerProperties.h

Index: third_party/WebKit/public/web/WebFrameOwnerProperties.h
diff --git a/third_party/WebKit/public/web/WebFrameOwnerProperties.h b/third_party/WebKit/public/web/WebFrameOwnerProperties.h
index f08a90f857ba1713d2af03b7e4b58783936d9a57..ba6ccef5480d638629a8f79dcf65d361f46d6316 100644
--- a/third_party/WebKit/public/web/WebFrameOwnerProperties.h
+++ b/third_party/WebKit/public/web/WebFrameOwnerProperties.h
@@ -5,6 +5,10 @@
 #ifndef WebFrameOwnerProperties_h
 #define WebFrameOwnerProperties_h
 
+#include "public/platform/WebVector.h"
+#include "public/platform/modules/permissions/WebPermissionType.h"
+#include <algorithm>
+
 namespace blink {
 
 struct WebFrameOwnerProperties {
@@ -19,6 +23,7 @@ struct WebFrameOwnerProperties {
     int marginWidth;
     int marginHeight;
     bool allowFullscreen;
+    WebVector<WebPermissionType> delegatedPermissions;
 
     WebFrameOwnerProperties()
         : scrollingMode(ScrollingMode::Auto)
@@ -29,11 +34,12 @@ struct WebFrameOwnerProperties {
     }
 
 #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
@@ -43,7 +49,10 @@ struct WebFrameOwnerProperties {
         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