Update manual tests and comments to refer to TestRunner instead of LayoutTestController

Update manual tests and comments to refer to TestRunner instead of LayoutTestController
https://bugs.webkit.org/show_bug.cgi?id=94168

Reviewed by Kent Tamura.

.:

* ManualTests/resources/multiFileResources/post-echo-and-notify-done.cgi:

Source/WebKit:

* PlatformBlackBerry.cmake:

Source/WebKit/chromium:

* public/WebDevToolsAgent.h:
(WebDevToolsAgent):
* public/WebView.h:
(WebView):

Source/WebKit/qt:

* Api/qwebelement.cpp:
(convertJSValueToWebElementVariant):
* WebCoreSupport/DumpRenderTreeSupportQt.h:

Source/WebKit/win:

* Interfaces/IWebPreferencesPrivate.idl:

Source/WebKit2:

* Shared/WebPreferencesStore.cpp:
(WebKit::WebPreferencesStore::getBoolValueForKey):

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@125738 268f45cc-cd09-0410-ab3c-d52691b4dbfc