Add an iframe permissions= attribute for implementing permission delegation

third_party/WebKit/Source/web/RemoteFrameOwner.h

Index: third_party/WebKit/Source/web/RemoteFrameOwner.h
diff --git a/third_party/WebKit/Source/web/RemoteFrameOwner.h b/third_party/WebKit/Source/web/RemoteFrameOwner.h
index 1c62850681d818f70af9a16b90afbf37552c8b72..aca360e1559041de2763eaf54793c972fc72b2c0 100644
--- a/third_party/WebKit/Source/web/RemoteFrameOwner.h
+++ b/third_party/WebKit/Source/web/RemoteFrameOwner.h
@@ -36,11 +36,13 @@ public:
     int marginWidth() const override { return m_marginWidth; }
     int marginHeight() const override { return m_marginHeight; }
     bool allowFullscreen() const override { return m_allowFullscreen; }
+    const WebVector<WebPermissionType>& delegatedPermissions() const override { return m_delegatedPermissions; }
 
     void setScrollingMode(WebFrameOwnerProperties::ScrollingMode);
     void setMarginWidth(int marginWidth) { m_marginWidth = marginWidth; }
     void setMarginHeight(int marginHeight) { m_marginHeight = marginHeight; }
     void setAllowFullscreen(bool allowFullscreen) { m_allowFullscreen = allowFullscreen; }
+    void setDelegatedpermissions(const WebVector<WebPermissionType>& delegatedPermissions) { m_delegatedPermissions = delegatedPermissions; }
 
     DECLARE_VIRTUAL_TRACE();
 
@@ -58,6 +60,7 @@ private:
     int m_marginWidth;
     int m_marginHeight;
     bool m_allowFullscreen;
+    WebVector<WebPermissionType> m_delegatedPermissions;
 };
 
 DEFINE_TYPE_CASTS(RemoteFrameOwner, FrameOwner, owner, owner->isRemote(), owner.isRemote());