Move CC switches to cc/switches.h.

cc/content_layer.cc

Index: cc/content_layer.cc
diff --git a/cc/content_layer.cc b/cc/content_layer.cc
index 32ff38113fb4191f7f6492ae90b5e2e9b1d2e899..742823815268319eae10d2c355e42fd7af315028 100644
--- a/cc/content_layer.cc
+++ b/cc/content_layer.cc
@@ -90,7 +90,7 @@ void ContentLayerChromium::createTextureUpdaterIfNeeded()
     scoped_ptr<LayerPainterChromium> painter = ContentLayerPainter::create(m_client).PassAs<LayerPainterChromium>();
     if (layerTreeHost()->settings().acceleratePainting)
         m_textureUpdater = FrameBufferSkPictureCanvasLayerTextureUpdater::create(painter.Pass());
-    else if (CCSettings::perTilePaintingEnabled())
+    else if (Settings::perTilePaintingEnabled())
         m_textureUpdater = BitmapSkPictureCanvasLayerTextureUpdater::create(painter.Pass());
     else
         m_textureUpdater = BitmapCanvasLayerTextureUpdater::create(painter.Pass());