Allows fullscreen to be triggered with the key events used for scrolling.

content/renderer/gpu/render_widget_compositor.cc

Index: content/renderer/gpu/render_widget_compositor.cc
diff --git a/content/renderer/gpu/render_widget_compositor.cc b/content/renderer/gpu/render_widget_compositor.cc
index 55a7b4987057db15cd68ed247e2baced64bdfbc9..39a1b1e870153c284185bf9e8ea15abd5b311fa8 100644
--- a/content/renderer/gpu/render_widget_compositor.cc
+++ b/content/renderer/gpu/render_widget_compositor.cc
@@ -359,6 +359,10 @@ void RenderWidgetCompositor::SetLatencyInfo(
   layer_tree_host_->SetLatencyInfo(latency_info);
 }
 
+void RenderWidgetCompositor::ShowTopControls(bool show) {
+  layer_tree_host_->ShowTopControls(show);
+}
+
 bool RenderWidgetCompositor::initialize(cc::LayerTreeSettings settings) {
   scoped_ptr<cc::Thread> impl_thread;
   scoped_refptr<base::MessageLoopProxy> compositor_message_loop_proxy =