Remove webkitIsFullScreen everywhere except in bindings

It's equivalent to webkitCurrentFullScreenElement != null.

BUG=383813

Review URL: https://codereview.chromium.org/476353002

git-svn-id: svn://svn.chromium.org/blink/trunk@180439 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/Source/core/css/SelectorChecker.cpp

@@ -855,12 +855,7 @@ bool SelectorChecker::checkOne(const SelectorCheckingContext& context, const Sib
             // context's Document is in the fullscreen state has the 'full-screen' pseudoclass applied.
             if (isHTMLFrameElementBase(element) && element.containsFullScreenElement())
                 return true;
-            if (Fullscreen* fullscreen = Fullscreen::fromIfExists(element.document())) {
-                if (!fullscreen->webkitIsFullScreen())
-                    return false;
-                return element == fullscreen->webkitCurrentFullScreenElement();
-            }
-            return false;
+            return Fullscreen::isActiveFullScreenElement(element);
         case CSSSelector::PseudoFullScreenAncestor:
             return element.containsFullScreenElement();
         case CSSSelector::PseudoFullScreenDocument:

third_party/WebKit/Source/core/dom/DocumentFullscreen.cpp

@@ -47,13 +47,6 @@ void DocumentFullscreen::exitFullscreen(Document& document)
     Fullscreen::from(document).exitFullscreen();
 }
 
-bool DocumentFullscreen::webkitIsFullScreen(Document& document)
-{
-    if (Fullscreen* fullscreen = Fullscreen::fromIfExists(document))
-        return fullscreen->webkitIsFullScreen();
-    return false;
-}
-
 bool DocumentFullscreen::webkitFullScreenKeyboardInputAllowed(Document& document)
 {
     if (Fullscreen* fullscreen = Fullscreen::fromIfExists(document))

third_party/WebKit/Source/core/dom/DocumentFullscreen.h

@@ -43,7 +43,6 @@ public:
     DEFINE_STATIC_ATTRIBUTE_EVENT_LISTENER(fullscreenerror);
 
     // Mozilla version
-    static bool webkitIsFullScreen(Document&);
     static bool webkitFullScreenKeyboardInputAllowed(Document&);
     static Element* webkitCurrentFullScreenElement(Document&);
 

third_party/WebKit/Source/core/dom/DocumentFullscreen.idl

@@ -29,7 +29,7 @@ partial interface Document {
     [RuntimeEnabled=FullscreenUnprefixed] attribute EventHandler onfullscreenerror;
 
     // Mozilla version
-    [MeasureAs=PrefixedDocumentIsFullscreen] readonly attribute boolean webkitIsFullScreen;
+    [MeasureAs=PrefixedDocumentIsFullscreen, ImplementedAs=webkitCurrentFullScreenElement] readonly attribute boolean webkitIsFullScreen;
     [MeasureAs=PrefixedDocumentFullScreenKeyboardInputAllowed] readonly attribute boolean webkitFullScreenKeyboardInputAllowed;
     [MeasureAs=PrefixedDocumentCurrentFullScreenElement] readonly attribute Element webkitCurrentFullScreenElement;
     [MeasureAs=PrefixedDocumentCancelFullScreen, ImplementedAs=exitFullscreen] void webkitCancelFullScreen();

third_party/WebKit/Source/core/dom/Fullscreen.cpp

@@ -122,9 +122,7 @@ Element* Fullscreen::currentFullScreenElementFrom(Document& document)
 
 bool Fullscreen::isFullScreen(Document& document)
 {
-    if (Fullscreen* found = fromIfExists(document))
-        return found->webkitIsFullScreen();
-    return false;
+    return currentFullScreenElementFrom(document);
 }
 
 Fullscreen::Fullscreen(Document& document)

third_party/WebKit/Source/core/dom/Fullscreen.h

@@ -85,7 +85,6 @@ public:
     void elementRemoved(Element&);
 
     // Mozilla API
-    bool webkitIsFullScreen() const { return m_fullScreenElement.get(); }
     bool webkitFullScreenKeyboardInputAllowed() const { return m_fullScreenElement.get() && m_areKeysEnabledInFullScreen; }
     Element* webkitCurrentFullScreenElement() const { return m_fullScreenElement.get(); }
 

third_party/WebKit/Source/core/page/EventHandler.cpp

@@ -2969,7 +2969,7 @@ bool EventHandler::keyEvent(const PlatformKeyboardEvent& initialKeyEvent)
 
     ASSERT(m_frame->document());
     if (Fullscreen* fullscreen = Fullscreen::fromIfExists(*m_frame->document())) {
-        if (fullscreen->webkitIsFullScreen() && !isKeyEventAllowedInFullScreen(fullscreen, initialKeyEvent)) {
+        if (fullscreen->webkitCurrentFullScreenElement() && !isKeyEventAllowedInFullScreen(fullscreen, initialKeyEvent)) {
             UseCounter::count(*m_frame->document(), UseCounter::KeyEventNotAllowedInFullScreen);
             return false;
         }

third_party/WebKit/Source/web/FullscreenController.cpp

@@ -134,7 +134,7 @@ void FullscreenController::didExitFullScreen()
 
     if (Document* doc = m_fullScreenFrame->document()) {
         if (Fullscreen* fullscreen = Fullscreen::fromIfExists(*doc)) {
-            if (fullscreen->webkitIsFullScreen()) {
+            if (fullscreen->webkitCurrentFullScreenElement()) {
                 if (m_exitFullscreenPageScaleFactor) {
                     m_webViewImpl->setPageScaleFactor(m_exitFullscreenPageScaleFactor);
                     m_webViewImpl->setMainFrameScrollOffset(IntPoint(m_exitFullscreenScrollOffset));