Separate RenderViewHost from RenderWidgetHost, part 2: public implementation.

content/browser/renderer_host/render_view_host_impl.cc

Index: content/browser/renderer_host/render_view_host_impl.cc
diff --git a/content/browser/renderer_host/render_view_host_impl.cc b/content/browser/renderer_host/render_view_host_impl.cc
index b09ff1f52d345a6096cb853dcfc142ae3186f36a..0c6793ffd1d069df67742a4014d5760fbf69e2ec 100644
--- a/content/browser/renderer_host/render_view_host_impl.cc
+++ b/content/browser/renderer_host/render_view_host_impl.cc
@@ -177,8 +177,7 @@ RenderViewHost* RenderViewHost::FromID(int render_process_id,
 
 // static
 RenderViewHost* RenderViewHost::From(RenderWidgetHost* rwh) {
-  DCHECK(rwh->IsRenderView());
-  return static_cast<RenderViewHostImpl*>(RenderWidgetHostImpl::From(rwh));
+  return RenderViewHostImpl::From(rwh);
 }
 
 ///////////////////////////////////////////////////////////////////////////////
@@ -194,6 +193,12 @@ RenderViewHostImpl* RenderViewHostImpl::FromID(int render_process_id,
   return static_cast<RenderViewHostImpl*>(RenderWidgetHostImpl::From(widget));
 }
 
+// static
+RenderViewHostImpl* RenderViewHostImpl::From(RenderWidgetHost* rwh) {
+  DCHECK(rwh->IsRenderView());
+  return static_cast<RenderViewHostImpl*>(RenderWidgetHostImpl::From(rwh));
+}
+
 RenderViewHostImpl::RenderViewHostImpl(
     SiteInstance* instance,
     RenderViewHostDelegate* delegate,
@@ -738,9 +743,9 @@ bool RenderViewHostImpl::Send(IPC::Message* msg) {
   return RenderWidgetHostImpl::Send(msg);
 }
 
-RenderWidgetHost* RenderViewHostImpl::GetWidget() const {
-  return const_cast<RenderWidgetHost*>(
-      static_cast<const RenderWidgetHost*>(this));
+RenderWidgetHostImpl* RenderViewHostImpl::GetWidget() const {
+  return const_cast<RenderWidgetHostImpl*>(
+      static_cast<const RenderWidgetHostImpl*>(this));
 }
 
 RenderProcessHost* RenderViewHostImpl::GetProcess() const {