Extract minimal RenderViewHost interface for embedders, leaving

content/browser/worker_host/worker_process_host.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/worker_host/worker_process_host.h"
 
 #include <set>
 #include <string>
 #include <vector>
 
@@ skipping 67 matching lines @@
   }
 
  private:
   net::URLRequestContext* url_request_context_;
 };
 
 }  // namespace
 
 // Notifies RenderViewHost that one or more worker objects crashed.
 void WorkerCrashCallback(int render_process_unique_id, int render_view_id) {
-  RenderViewHost* host =
-      RenderViewHost::FromID(render_process_unique_id, render_view_id);
+  RenderViewHostImpl* host =
+      RenderViewHostImpl::FromID(render_process_unique_id, render_view_id);
   if (host)
-    host->delegate()->WorkerCrashed();
+    host->GetDelegate()->WorkerCrashed();
 }
 
 WorkerProcessHost::WorkerProcessHost(content::ResourceContext* resource_context)
     : resource_context_(resource_context) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
   DCHECK(resource_context);
   process_.reset(
       new BrowserChildProcessHostImpl(content::PROCESS_TYPE_WORKER, this));
 }
 
@@ skipping 581 matching lines @@
     }
   }
   return false;
 }
 
 WorkerProcessHost::WorkerInstance::FilterInfo
 WorkerProcessHost::WorkerInstance::GetFilter() const {
   DCHECK(NumFilters() == 1);
   return *filters_.begin();
 }