Handle pointer-events: none in browser process hittesting.

third_party/WebKit/Source/web/WebRemoteFrameImpl.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 WebRemoteFrameImpl_h
 #define WebRemoteFrameImpl_h
 
 #include "core/frame/FrameOwner.h"
 #include "core/frame/RemoteFrame.h"
 #include "public/web/WebRemoteFrame.h"
@@ skipping 175 matching lines @@
 
     void setReplicatedOrigin(const WebSecurityOrigin&) const override;
     void setReplicatedSandboxFlags(WebSandboxFlags) const override;
     void setReplicatedName(const WebString&) const override;
     void setReplicatedShouldEnforceStrictMixedContentChecking(bool) const override;
     void DispatchLoadEventForFrameOwner() const override;
 
     void didStartLoading() override;
     void didStopLoading() override;
 
+    bool ignoredForHittest() const override;

[dcheng, 2016/01/21 23:47:20]

isIgnoredForHitTest or shouldIgnoreForHitTest

+
 #if ENABLE(OILPAN)
     DECLARE_TRACE();
 #endif
 
 private:
     WebRemoteFrameImpl(WebTreeScopeType, WebRemoteFrameClient*);
 
     OwnPtrWillBeMember<RemoteFrameClientImpl> m_frameClient;
     RefPtrWillBeMember<RemoteFrame> m_frame;
     WebRemoteFrameClient* m_client;
 
     WillBeHeapHashMap<WebFrame*, OwnPtrWillBeMember<FrameOwner>> m_ownersForChildren;
 
 #if ENABLE(OILPAN)
     // Oilpan: WebRemoteFrameImpl must remain alive until close() is called.
     // Accomplish that by keeping a self-referential Persistent<>. It is
     // cleared upon close().
     SelfKeepAlive<WebRemoteFrameImpl> m_selfKeepAlive;
 #endif
 };
 
 DEFINE_TYPE_CASTS(WebRemoteFrameImpl, WebFrame, frame, frame->isWebRemoteFrame(), frame.isWebRemoteFrame());
 
 } // namespace blink
 
 #endif // WebRemoteFrameImpl_h