Add support for calculating the position of the top controls in the cc layer.

content/browser/renderer_host/compositor_impl_android.cc

Index: content/browser/renderer_host/compositor_impl_android.cc
diff --git a/content/browser/renderer_host/compositor_impl_android.cc b/content/browser/renderer_host/compositor_impl_android.cc
index 9e645bacfddcbc3c979203611d0d67190cb8eed0..b3cc33ba18b3ae54c1a90bf255d2907b78716a0d 100644
--- a/content/browser/renderer_host/compositor_impl_android.cc
+++ b/content/browser/renderer_host/compositor_impl_android.cc
@@ -173,6 +173,8 @@ void CompositorImpl::SetVisible(bool visible) {
     cc::LayerTreeSettings settings;
     settings.refreshRate = 60.0;
     settings.implSidePainting = false;
+    settings.calculateTopControlsPosition = false;
+    settings.topControlsHeightPx = 0;
 
     // Do not clear the framebuffer when rendering into external GL contexts
     // like Android View System's.