Reviewed by Adam.

        <rdar://problem/5343767> Should have a way to disable the Web Inspector

        This change facilitates the ability to turn the Web Inspector on and off.

        Makes the InspectorClient be required to create a new Page. This also means that
        InspectorController will never be NULL. Adds a new function on Page to test
        if the inspector is enabled.

        * WebCore.exp: New symbol for the Page constructor.
        * WebCore.pro: Add InspectorClientGdk.cpp.
        * WebCoreSources.bkl: ditto.
        * html/HTMLDocument.cpp:
        (WebCore::HTMLDocument::createTokenizer):
        * loader/FrameLoader.cpp:
        (WebCore::FrameLoader::detachFromParent): Don't null check the InspectorCOntroller.
        (WebCore::FrameLoader::dispatchDidCommitLoad): Ditto.
        (WebCore::FrameLoader::dispatchAssignIdentifierToInitialRequest): Ditto.
        (WebCore::FrameLoader::dispatchWillSendRequest): Ditto.
        (WebCore::FrameLoader::dispatchDidReceiveResponse): Ditto.
        (WebCore::FrameLoader::dispatchDidReceiveContentLength): Ditto.
        (WebCore::FrameLoader::dispatchDidFinishLoading): Ditto.
        (WebCore::FrameLoader::dispatchDidLoadResourceFromMemoryCache): Ditto.
        * page/ContextMenuController.cpp:
        (WebCore::ContextMenuController::handleContextMenuEvent): Ask the InspectorController if it is enabled.
        (WebCore::ContextMenuController::contextMenuItemSelected): Ditto.
        * page/InspectorController.cpp:
        (WebCore::InspectorController::enabled): Ask the Page's settings if developer extras are enabled.
        (WebCore::InspectorController::inspect): Check if the InspectorController is enabled.
        (WebCore::InspectorController::focusNode): Ditto.
        (WebCore::InspectorController::highlight): Ditto.
        (WebCore::InspectorController::hideHighlight): Ditto.
        (WebCore::InspectorController::addMessageToConsole): Ditto.
        (WebCore::InspectorController::attachWindow): Ditto.
        (WebCore::InspectorController::detachWindow): Ditto.
        (WebCore::InspectorController::windowScriptObjectAvailable): Ditto.
        (WebCore::InspectorController::didCommitLoad): Ditto.
        (WebCore::InspectorController::frameDetachedFromParent): Ditto.
        (WebCore::InspectorController::didLoadResourceFromMemoryCache): Ditto.
        (WebCore::InspectorController::identifierForInitialRequest): Ditto.
        (WebCore::InspectorController::willSendRequest): Ditto.
        (WebCore::InspectorController::didReceiveResponse): Ditto.
        (WebCore::InspectorController::didReceiveContentLength): Ditto.
        (WebCore::InspectorController::didFinishLoading): Ditto.
        (WebCore::InspectorController::didFailLoading): Ditto.
        * page/InspectorController.h:
        * page/Page.cpp:
        (WebCore::Page::Page): Require an InspectorClient.
        (WebCore::Page::~Page): Always call pageDestroyed on the InspectorController.
        (WebCore::Page::inspectorEnabled): Check the WebCore settings if the developer extras are enabled.
        * page/Page.h:
        * page/gdk/InspectorClientGdk.cpp: Added.
        (WebCore::InspectorClientGdk::inspectorDestroyed): Empty stub calling notImplemented.
        (WebCore::InspectorClientGdk::createPage): Ditto.
        (WebCore::InspectorClientGdk::showWindow): Ditto.
        (WebCore::InspectorClientGdk::closeWindow): Ditto.
        (WebCore::InspectorClientGdk::attachWindow): Ditto.
        (WebCore::InspectorClientGdk::detachWindow): Ditto.
        (WebCore::InspectorClientGdk::highlight): Ditto.
        (WebCore::InspectorClientGdk::hideHighlight): Ditto.
        (WebCore::InspectorClientGdk::inspectedURLChanged): Ditto.
        * page/gdk/InspectorClientGdk.h: Added.
        * platform/graphics/svg/SVGImage.cpp:
        (WebCore::SVGImage::dataChanged): Pass in a dummy InspectorClient.
        * platform/graphics/svg/SVGImageEmptyClients.h:
        (WebCore::SVGEmptyInspectorClient::~SVGEmptyInspectorClient): Empty dummy implementation.
        (WebCore::SVGEmptyInspectorClient::inspectorDestroyed): Ditto.
        (WebCore::SVGEmptyInspectorClient::createPage): Ditto.
        (WebCore::SVGEmptyInspectorClient::showWindow): Ditto.
        (WebCore::SVGEmptyInspectorClient::closeWindow): Ditto.
        (WebCore::SVGEmptyInspectorClient::attachWindow): Ditto.
        (WebCore::SVGEmptyInspectorClient::detachWindow): Ditto.
        (WebCore::SVGEmptyInspectorClient::highlight): Ditto.
        (WebCore::SVGEmptyInspectorClient::hideHighlight): Ditto.
        (WebCore::SVGEmptyInspectorClient::inspectedURLChanged): Ditto.

WebKit:

        Reviewed by Adam.

        <rdar://problem/5343767> Should have a way to disable the Web Inspector

        Adds a new DisableWebKitDeveloperExtras default that will force the Web Inspector to be disabled.
        This overrides the WebKitDeveloperExtras and IncludeDebugMenu default. It also disables
        the Web Inspector in Debug builds.

        * WebView/WebView.mm:
        (+[WebView _developerExtrasEnabled]): Check for the DisableWebKitDeveloperExtras default.
        (-[WebView _commonInitializationWithFrameName:groupName:]): Make a new WebInspectorClient when making the Page.

WebKitQt:

        Reviewed by Adam.

        Make the Page with the now required InspectorClient.

        * Api/qwebpage.cpp:
        (QWebPagePrivate::QWebPagePrivate):
        * WebKitPart/WebKitPart.cpp:
        (WebKitPart::initView):

WebKitTools:

        Reviewed by Adam.

        Make the Page with the now required InspectorClient.

        * GdkLauncher/main.cpp:
        (main):

win:

        Reviewed by Adam.

        Make the Page with the now required InspectorClient.

        * WebView.cpp:
        (WebView::initWithFrame):



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@24422 268f45cc-cd09-0410-ab3c-d52691b4dbfc