Add occlusion support to WebContentsImpl and RenderWidgetHostView

content/test/test_render_view_host.cc

Index: content/test/test_render_view_host.cc
diff --git a/content/test/test_render_view_host.cc b/content/test/test_render_view_host.cc
index 65cb97409a204f7c10419082d495e2df7bb2e0a4..f3c83fd0091e2626ac213579e612d38461d86602 100644
--- a/content/test/test_render_view_host.cc
+++ b/content/test/test_render_view_host.cc
@@ -48,6 +48,7 @@ void InitNavigateParams(FrameHostMsg_DidCommitProvisionalLoad_Params* params,
 TestRenderWidgetHostView::TestRenderWidgetHostView(RenderWidgetHost* rwh)
     : rwh_(RenderWidgetHostImpl::From(rwh)),
       is_showing_(false),
+      is_occluded_(false),
       did_swap_compositor_frame_(false) {
   rwh_->SetView(this);
 }
@@ -89,6 +90,7 @@ bool TestRenderWidgetHostView::IsSurfaceAvailableForCopy() const {
 
 void TestRenderWidgetHostView::Show() {
   is_showing_ = true;
+  is_occluded_ = false;
 }
 
 void TestRenderWidgetHostView::Hide() {
@@ -99,6 +101,14 @@ bool TestRenderWidgetHostView::IsShowing() {
   return is_showing_;
 }
 
+void TestRenderWidgetHostView::WasUnOccluded() {
+  is_occluded_ = false;
+}
+
+void TestRenderWidgetHostView::WasOccluded() {
+  is_occluded_ = true;
+}
+
 void TestRenderWidgetHostView::RenderProcessGone(base::TerminationStatus status,
                                                  int error_code) {
   delete this;