Enabled using viewport on desktop browsers behind experimental flag

Source/WebKit/chromium/src/WebSettingsImpl.h

Index: Source/WebKit/chromium/src/WebSettingsImpl.h
diff --git a/Source/WebKit/chromium/src/WebSettingsImpl.h b/Source/WebKit/chromium/src/WebSettingsImpl.h
index e5a82490620ff789c9816bf1d401a00e64ba9f46..25e497182a3b0d409e432a197aee21e59d080f1e 100644
--- a/Source/WebKit/chromium/src/WebSettingsImpl.h
+++ b/Source/WebKit/chromium/src/WebSettingsImpl.h
@@ -44,6 +44,8 @@ public:
     explicit WebSettingsImpl(WebCore::Settings*);
     virtual ~WebSettingsImpl() { }
 
+    virtual bool desktopViewportEnabled() const;
+    virtual bool deviceSupportsRotation() const;
     virtual bool deviceSupportsTouch();
     virtual bool scrollAnimatorEnabled() const;
     virtual bool touchEditingEnabled() const;
@@ -82,7 +84,9 @@ public:
     virtual void setDefaultVideoPosterURL(const WebString&);
     virtual void setDeferred2dCanvasEnabled(bool);
     virtual void setDeferredImageDecodingEnabled(bool);
+    virtual void setDesktopViewportEnabled(bool);
     virtual void setDeviceSupportsMouse(bool);
+    virtual void setDeviceSupportsRotation(bool);
     virtual void setDeviceSupportsTouch(bool);
     virtual void setDoubleTapToZoomEnabled(bool);
     virtual void setDownloadableBinaryFontsEnabled(bool);
@@ -188,6 +192,8 @@ private:
     bool m_doubleTapToZoomEnabled;
     bool m_perTilePaintingEnabled;
     bool m_supportDeprecatedTargetDensityDPI;
+    bool m_deviceSupportsRotation;
+    bool m_desktopViewportEnabled;
 };
 
 } // namespace WebKit