Add an iframe permissions= attribute for implementing permission delegation

third_party/WebKit/Source/core/frame/FrameOwner.h

 // Copyright 2014 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 FrameOwner_h
 #define FrameOwner_h
 
 #include "core/CoreExport.h"
 #include "core/dom/SandboxFlags.h"
 #include "platform/heap/Handle.h"
 #include "platform/scroll/ScrollTypes.h"
+#include "public/platform/WebVector.h"
+#include "public/platform/modules/permissions/WebPermissionType.h"
 
 namespace blink {
 
 class Frame;
 
 // Oilpan: all FrameOwner instances are GCed objects. FrameOwner additionally
 // derives from GarbageCollectedMixin so that Member<FrameOwner> references can
 // be kept (e.g., Frame::m_owner.)
 class CORE_EXPORT FrameOwner : public GarbageCollectedMixin {
 public:
@@ skipping 10 matching lines @@
     virtual void dispatchLoad() = 0;
 
     // On load failure, a frame can ask its owner to render fallback content
     // which replaces the frame contents.
     virtual void renderFallbackContent() = 0;
 
     virtual ScrollbarMode scrollingMode() const = 0;
     virtual int marginWidth() const = 0;
     virtual int marginHeight() const = 0;
     virtual bool allowFullscreen() const = 0;
+    virtual const WebVector<WebPermissionType>& delegatedPermissions() const = 0;
 };
 
 class CORE_EXPORT DummyFrameOwner : public GarbageCollectedFinalized<DummyFrameOwner>, public FrameOwner {
     USING_GARBAGE_COLLECTED_MIXIN(DummyFrameOwner);
 public:
     static DummyFrameOwner* create()
     {
         return new DummyFrameOwner;
     }
 
     DEFINE_INLINE_VIRTUAL_TRACE() { FrameOwner::trace(visitor); }
 
     // FrameOwner overrides:
     void setContentFrame(Frame&) override { }
     void clearContentFrame() override { }
     SandboxFlags getSandboxFlags() const override { return SandboxNone; }
     void dispatchLoad() override { }
     void renderFallbackContent() override { }
     ScrollbarMode scrollingMode() const override { return ScrollbarAuto; }
     int marginWidth() const override { return -1; }
     int marginHeight() const override { return -1; }
     bool allowFullscreen() const override { return false; }
+    const WebVector<WebPermissionType>& delegatedPermissions() const override
+    {
+        DEFINE_STATIC_LOCAL(WebVector<WebPermissionType>, permissions, ());
+        return permissions;
+    }
 
 private:
     // Intentionally private to prevent redundant checks when the type is
     // already DummyFrameOwner.
     bool isLocal() const override { return false; }
     bool isRemote() const override { return false; }
 };
 
 } // namespace blink
 
 #endif // FrameOwner_h