Revert of Fix RemoteFrame detachment to signal its client. (patchset #1 id:1...

Revert of Fix RemoteFrame detachment to signal its client. (patchset #1 id:1 of https://codereview.chromium.org/712653002/)

Reason for revert:
Speculative revert to attempt to fix https://code.google.com/p/chromium/issues/detail?id=431608

Original issue's description:
> Fix RemoteFrame detachment to signal its client.
> 
> We were seeing crashes in checkFrameCountConsistency() because during
> RemoteFrame detachment the client was not getting signalled to modify
> the frame tree, resulting in inconsistent state. This CL corrects that
> problem.
> 
> BUG=430972
> 
> Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=184987

TBR=japhet@chromium.org,dcheng@chromium.org,kenrb@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=430972

Review URL: https://codereview.chromium.org/699053004

git-svn-id: svn://svn.chromium.org/blink/trunk@185015 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/Source/web/RemoteFrameClientImpl.cpp

@@ -14,7 +14,6 @@
 #include "platform/exported/WrappedResourceRequest.h"
 #include "platform/weborigin/SecurityOrigin.h"
 #include "platform/weborigin/SecurityPolicy.h"
-#include "public/web/WebRemoteFrameClient.h"
 #include "web/WebInputEventConversion.h"
 #include "web/WebLocalFrameImpl.h"
 #include "web/WebRemoteFrameImpl.h"
@@ -28,17 +27,7 @@ RemoteFrameClientImpl::RemoteFrameClientImpl(WebRemoteFrameImpl* webFrame)
 
 void RemoteFrameClientImpl::detached()
 {
-    // Alert the client that the frame is being detached.
-    RefPtrWillBeRawPtr<WebRemoteFrameImpl> protector(m_webFrame);
-
-    WebRemoteFrameClient* client = m_webFrame->client();
-    if (!client)
-        return;
-
-    client->frameDetached();
-    // Clear our reference to RemoteFrame at the very end, in case the client
-    // refers to it.
-    m_webFrame->setCoreFrame(nullptr);
+    // FIXME: Implement.
 }
 
 Frame* RemoteFrameClientImpl::opener() const

third_party/WebKit/public/web/WebRemoteFrameClient.h

@@ -12,7 +12,6 @@ namespace blink {
 class WebInputEvent;
 class WebLocalFrame;
 class WebRemoteFrame;
-struct WebRect;
 
 class WebRemoteFrameClient {
 public: