Clean up around methods to enter/exit fullscreen

content/renderer/render_frame_impl.cc

Index: content/renderer/render_frame_impl.cc
diff --git a/content/renderer/render_frame_impl.cc b/content/renderer/render_frame_impl.cc
index db7242bce67a9b0995cde3fe8a29c56a4d2fa453..ef2740f7986d1a0ab6ab11cd4993ab80dd52cb27 100644
--- a/content/renderer/render_frame_impl.cc
+++ b/content/renderer/render_frame_impl.cc
@@ -4428,14 +4428,12 @@ void RenderFrameImpl::didChangeManifest() {
   FOR_EACH_OBSERVER(RenderFrameObserver, observers_, DidChangeManifest());
 }
 
-bool RenderFrameImpl::enterFullscreen() {
+void RenderFrameImpl::enterFullscreen() {
   Send(new FrameHostMsg_ToggleFullscreen(routing_id_, true));
-  return true;
 }
 
-bool RenderFrameImpl::exitFullscreen() {
+void RenderFrameImpl::exitFullscreen() {
   Send(new FrameHostMsg_ToggleFullscreen(routing_id_, false));
-  return true;
 }
 
 blink::WebPermissionClient* RenderFrameImpl::permissionClient() {