- remove BrowserExtension

        * WebCore.vcproj/WebCore/WebCore.vcproj:
        * WebCore.xcodeproj/project.pbxproj:
        * bindings/js/kjs_window.cpp:
        (KJS::createNewWindow):
        (KJS::WindowFunc::callAsFunction):
        * bridge/BrowserExtension.h: Removed.
        * bridge/mac/BrowserExtensionMac.h: Removed.
        * bridge/mac/BrowserExtensionMac.mm: Removed.
        * bridge/mac/FrameMac.mm:
        (WebCore::FrameMac::FrameMac):
        (WebCore::FrameMac::submitForm):
        (WebCore::FrameMac::urlSelected):
        * bridge/win/BrowserExtensionWin.cpp: Removed.
        * bridge/win/BrowserExtensionWin.h: Removed.
        * bridge/win/FrameWin.cpp:
        (WebCore::FrameWin::FrameWin):
        * loader/FrameLoader.cpp:
        (WebCore::FrameLoader::createWindow):
        * loader/FrameLoader.h:
        * loader/icon/IconLoader.cpp:
        * loader/mac/FrameLoaderMac.mm:
        (WebCore::FrameLoader::safeLoad):
        (WebCore::FrameLoader::load):
        (WebCore::FrameLoader::createWindow):
        * page/Frame.cpp:
        (WebCore::Frame::urlSelected):
        (WebCore::Frame::requestFrame):
        (WebCore::Frame::submitForm):
        (WebCore::Frame::scheduleHistoryNavigation):
        (WebCore::Frame::redirectionTimerFired):
        * page/Frame.h:
        * page/FrameLoadRequest.h:
        (WebCore::FrameLoadRequest::FrameLoadRequest):
        (WebCore::FrameLoadRequest::isEmpty):
        (WebCore::FrameLoadRequest::resourceRequest):
        (WebCore::FrameLoadRequest::frameName):
        (WebCore::FrameLoadRequest::setFrameName):
        * page/FramePrivate.h:
        (WebCore::FramePrivate::FramePrivate):
        (WebCore::FramePrivate::~FramePrivate):
        * platform/gdk/BrowserExtensionGdk.h: Removed.
        * platform/gdk/FrameGdk.cpp:
        (WebCore::FrameGdk::FrameGdk):
        * platform/gdk/TemporaryLinkStubs.cpp:
        * platform/network/ResourceRequest.h:
        (WebCore::ResourceRequest::isEmpty):



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@17471 268f45cc-cd09-0410-ab3c-d52691b4dbfc