Prevent attaching when inspecting the Web Inspector.

Prevent attaching when inspecting the Web Inspector.

Source/WebCore:

https://webkit.org/b/78304

Reviewed by Brian Weinstein.

* inspector/InspectorFrontendClientLocal.cpp:
(WebCore::InspectorFrontendClientLocal::canAttachWindow): Prevent attaching when the page is an inspector page.

Source/WebKit2:

Also adds some comments about keeping in sync with InspectorFrontendClientLocal::canAttachWindow
and why there are two implementations of the same function.

https://webkit.org/b/78304

Reviewed by Brian Weinstein.

* UIProcess/WebInspectorProxy.cpp:
(WebKit::WebInspectorProxy::canAttach): Prevent attaching when the page is an inspector page.
Added comments about InspectorFrontendClientLocal::canAttachWindow.
* UIProcess/WebInspectorProxy.h:
(WebInspectorProxy): Added comment about keeping in sync with InspectorFrontendClientLocal.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@107362 268f45cc-cd09-0410-ab3c-d52691b4dbfc