Webkit setting for embedders that do not support fullscreen.

Source/web/WebSettingsImpl.h

Index: Source/web/WebSettingsImpl.h
diff --git a/Source/web/WebSettingsImpl.h b/Source/web/WebSettingsImpl.h
index 56276a111ea1e2690efc25455a48460c906d96c0..01a18ea968a31c449045d0b90be3788b517a3496 100644
--- a/Source/web/WebSettingsImpl.h
+++ b/Source/web/WebSettingsImpl.h
@@ -99,6 +99,7 @@ public:
     virtual void setExperimentalWebGLEnabled(bool) OVERRIDE;
     virtual void setFantasyFontFamily(const WebString&, UScriptCode = USCRIPT_COMMON) OVERRIDE;
     virtual void setFixedFontFamily(const WebString&, UScriptCode = USCRIPT_COMMON) OVERRIDE;
+    virtual void setFullScreenEnabled(bool) OVERRIDE;
     virtual void setHyperlinkAuditingEnabled(bool) OVERRIDE;
     virtual void setIgnoreMainFrameOverflowHiddenQuirk(bool) OVERRIDE;
     virtual void setImagesEnabled(bool) OVERRIDE;
@@ -176,7 +177,6 @@ public:
     bool showPaintRects() const { return m_showPaintRects; }
     bool renderVSyncNotificationEnabled() const { return m_renderVSyncNotificationEnabled; }
     bool autoZoomFocusedNodeToLegibleScale() const { return m_autoZoomFocusedNodeToLegibleScale; }
-    bool disallowFullscreenForNonMediaElements() const { return m_disallowFullscreenForNonMediaElements; }
     bool doubleTapToZoomEnabled() const { return m_doubleTapToZoomEnabled; }
     bool perTilePaintingEnabled() const { return m_perTilePaintingEnabled; }
     bool supportDeprecatedTargetDensityDPI() const { return m_supportDeprecatedTargetDensityDPI; }
@@ -211,7 +211,6 @@ private:
     // can be removed any time after 2015. See http://crbug.com/313754.
     bool m_clobberUserAgentInitialScaleQuirk;
     bool m_mainFrameResizesAreOrientationChanges;
-    bool m_disallowFullscreenForNonMediaElements;
 };
 
 } // namespace blink