Fix fullscreen elements in pinch viewport mode.

Source/web/WebViewImpl.cpp

Index: Source/web/WebViewImpl.cpp
diff --git a/Source/web/WebViewImpl.cpp b/Source/web/WebViewImpl.cpp
index 86c2479776e064a3dae50b827773ccfb6bb68ff0..91352073460b903d6e7171c1f02bc36e38fcbe70 100644
--- a/Source/web/WebViewImpl.cpp
+++ b/Source/web/WebViewImpl.cpp
@@ -38,6 +38,7 @@
 #include "core/clipboard/DataObject.h"
 #include "core/dom/Document.h"
 #include "core/dom/DocumentMarkerController.h"
+#include "core/dom/Fullscreen.h"
 #include "core/dom/NodeRenderingTraversal.h"
 #include "core/dom/Text.h"
 #include "core/editing/Editor.h"
@@ -1757,6 +1758,8 @@ void WebViewImpl::resize(const WebSize& newSize)
         performResize();
     }
 
+    m_fullscreenController->updateSize();
+
     if (settings()->viewportEnabled()) {
         // Relayout immediately to recalculate the minimum scale limit.
         if (view->needsLayout())