Reviewed by Kenneth Rohde Christiansen.

        Viewport data change notifications
        https://bugs.webkit.org/show_bug.cgi?id=46755

        Regarding viewport meta tags, what matters for browser developers is to know when the viewport data has
        changed and its current value. Viewport data belongs to the document, but it is useful to keep the current
        viewport data in Page as a reference, to be able to send notifications only when the current viewport
        has changed.

        * dom/Document.cpp:
        (WebCore::Document::processViewport):
        (WebCore::Document::setInPageCache):
        * dom/ViewportArguments.h:
        (WebCore::ViewportArguments::operator==):
        * html/HTMLBodyElement.cpp:
        (WebCore::HTMLBodyElement::HTMLBodyElement):
        * page/Chrome.cpp:
        (WebCore::Chrome::viewportDataChanged):
        * page/Chrome.h:
        * page/ChromeClient.h:
        (WebCore::ChromeClient::viewportDataChanged):
        * page/Page.cpp:
        (WebCore::Page::updateViewportArguments):
        * page/Page.h:
        (WebCore::Page::viewportArguments):
2010-09-28  Luiz Agostini  <luiz.agostini@openbossa.org>

        Reviewed by Kenneth Rohde Christiansen.

        Viewport data change notifications
        https://bugs.webkit.org/show_bug.cgi?id=46755

        Regarding viewport meta tags, what matters for browser developers is to know when the viewport data has
        changed and its current value. Viewport data belongs to the document, but it is useful to keep the current
        viewport data in Page as a reference, to be able to send notifications only when the current viewport
        has changed.

        * Api/qwebframe.cpp:
        * Api/qwebframe_p.h:
        * Api/qwebpage.cpp:
        (QWebPagePrivate::viewportArguments):
        (QWebPage::viewportConfigurationForSize):
        * Api/qwebpage_p.h:
        * WebCoreSupport/ChromeClientQt.cpp:
        (WebCore::ChromeClientQt::viewportDataChanged):
        * WebCoreSupport/ChromeClientQt.h:
        * WebCoreSupport/DumpRenderTreeSupportQt.cpp:
        (DumpRenderTreeSupportQt::viewportAsText):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@69009 268f45cc-cd09-0410-ab3c-d52691b4dbfc