Add support for updating the Web Inspector toolbar height.

https://bugs.webkit.org/show_bug.cgi?id=115996

Reviewed by Joseph Pecoraro and Benjamin Poulain.

Source/WebCore:

* inspector/InspectorFrontendClient.h:
(InspectorFrontendClient):
* inspector/InspectorFrontendHost.cpp:
(WebCore::InspectorFrontendHost::setToolbarHeight):
* inspector/InspectorFrontendHost.h:
(InspectorFrontendHost):
* inspector/InspectorFrontendHost.idl:
* testing/Internals.cpp:

Source/WebKit/efl:

* WebCoreSupport/InspectorClientEfl.cpp:
(WebCore::InspectorFrontendClientEfl::setToolbarHeight):
* WebCoreSupport/InspectorClientEfl.h:

Source/WebKit/gtk:

* WebCoreSupport/InspectorClientGtk.cpp:
(WebKit::InspectorFrontendClient::setToolbarHeight):
* WebCoreSupport/InspectorClientGtk.h:

Source/WebKit/mac:

* WebCoreSupport/WebInspectorClient.h:
* WebCoreSupport/WebInspectorClient.mm:
(WebInspectorFrontendClient::setToolbarHeight):

Source/WebKit/qt:

* WebCoreSupport/InspectorClientQt.cpp:
(WebCore::InspectorFrontendClientQt::setToolbarHeight):
* WebCoreSupport/InspectorClientQt.h:

Source/WebKit/win:

* WebCoreSupport/WebInspectorClient.cpp:
(WebInspectorFrontendClient::setToolbarHeight):
* WebCoreSupport/WebInspectorClient.h:

Source/WebKit2:

* UIProcess/WebInspectorProxy.h:
(WebKit::WebInspectorProxy::setToolbarHeight):
(WebInspectorProxy):
* UIProcess/WebInspectorProxy.messages.in:
* UIProcess/efl/WebInspectorProxyEfl.cpp:
(WebKit::WebInspectorProxy::platformSetToolbarHeight):
* UIProcess/gtk/WebInspectorProxyGtk.cpp:
(WebKit::WebInspectorProxy::platformSetToolbarHeight):
(WebKit):
* UIProcess/mac/WebInspectorProxyMac.mm:
(WebKit::WebInspectorProxy::platformSetToolbarHeight):
* UIProcess/qt/WebInspectorProxyQt.cpp:
(WebKit::WebInspectorProxy::platformSetToolbarHeight):
* WebProcess/WebCoreSupport/WebInspectorFrontendClient.cpp:
(WebKit::WebInspectorFrontendClient::setToolbarHeight):
* WebProcess/WebCoreSupport/WebInspectorFrontendClient.h:
(WebInspectorFrontendClient):
* WebProcess/WebPage/WebInspector.cpp:
(WebKit::WebInspector::setToolbarHeight):
* WebProcess/WebPage/WebInspector.h:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@150041 268f45cc-cd09-0410-ab3c-d52691b4dbfc