Adds kind-of-live thumbnail generation for a potential tab switcher. This...

chrome/browser/renderer_host/test_render_view_host.cc

Index: chrome/browser/renderer_host/test_render_view_host.cc
===================================================================
--- chrome/browser/renderer_host/test_render_view_host.cc	(revision 17971)
+++ chrome/browser/renderer_host/test_render_view_host.cc	(working copy)
@@ -15,7 +15,7 @@
     : RenderViewHost(instance, delegate, routing_id, modal_dialog_event),
       render_view_created_(false),
       delete_counter_(NULL) {
-  set_view(new TestRenderWidgetHostView());
+  set_view(new TestRenderWidgetHostView(this));
 }
 
 TestRenderViewHost::~TestRenderViewHost() {
@@ -64,9 +64,14 @@
   OnMsgNavigate(msg);
 }
 
+TestRenderWidgetHostView::TestRenderWidgetHostView(RenderWidgetHost* rwh)
+    : rwh_(rwh),
+      is_showing_(false) {
+}
+
 BackingStore* TestRenderWidgetHostView::AllocBackingStore(
     const gfx::Size& size) {
-  return new BackingStore(size);
+  return new BackingStore(rwh_, size);
 }
 
 void RenderViewHostTestHarness::NavigateAndCommit(const GURL& url) {