Add a Content API around BrowserChildProcessHost, similar to what was done with ChildProcessHost....

content/browser/worker_host/worker_process_host.h

 // Copyright (c) 2011 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.
 
 #ifndef CONTENT_BROWSER_WORKER_HOST_WORKER_PROCESS_HOST_H_
 #define CONTENT_BROWSER_WORKER_HOST_WORKER_PROCESS_HOST_H_
 #pragma once
 
 #include <list>
 #include <utility>
 
 #include "base/basictypes.h"
 #include "base/file_path.h"
-#include "content/browser/browser_child_process_host.h"
+#include "base/memory/scoped_ptr.h"
 #include "content/common/content_export.h"
 #include "content/browser/worker_host/worker_document_set.h"
+#include "content/public/browser/browser_child_process_host_delegate.h"
+#include "content/public/browser/browser_child_process_host_iterator.h"
 #include "googleurl/src/gurl.h"
+#include "ipc/ipc_message.h"
+
+class BrowserChildProcessHost;
 
 namespace content {
 class ResourceContext;
 class WorkerServiceImpl;
 }  // namespace content
 
 // The WorkerProcessHost is the interface that represents the browser side of
 // the browser <-> worker communication channel. There will be one
 // WorkerProcessHost per worker process.  Currently each worker runs in its own
 // process, but that may change.  However, we do assume (by storing a
 // net::URLRequestContext) that a WorkerProcessHost serves a single
 // BrowserContext.
-class WorkerProcessHost : public BrowserChildProcessHost {
+class WorkerProcessHost : public content::BrowserChildProcessHostDelegate,
+                          public IPC::Message::Sender {
  public:
   // Contains information about each worker instance, needed to forward messages
   // between the renderer and worker processes.
   class WorkerInstance {
    public:
     WorkerInstance(const GURL& url,
                    const string16& name,
                    int worker_route_id,
                    int parent_process_id,
                    int64 main_resource_appcache_id,
@@ skipping 62 matching lines @@
     int parent_process_id_;
     int64 main_resource_appcache_id_;
     FilterList filters_;
     scoped_refptr<WorkerDocumentSet> worker_document_set_;
     const content::ResourceContext* const resource_context_;
   };
 
   explicit WorkerProcessHost(const content::ResourceContext* resource_context);
   virtual ~WorkerProcessHost();
 
+  // IPC::Message::Sender implementation:
+  virtual bool Send(IPC::Message* message) OVERRIDE;
+
   // Starts the process.  Returns true iff it succeeded.
   // |render_process_id| is the renderer process responsible for starting this
   // worker.
   bool Init(int render_process_id);
 
   // Creates a worker object in the process.
   void CreateWorker(const WorkerInstance& instance);
 
   // Returns true iff the given message from a renderer process was forwarded to
   // the worker.
   bool FilterMessage(const IPC::Message& message, WorkerMessageFilter* filter);
 
   void FilterShutdown(WorkerMessageFilter* filter);
 
   // Shuts down any shared workers that are no longer referenced by active
   // documents.
   void DocumentDetached(WorkerMessageFilter* filter,
                         unsigned long long document_id);
 
   // Terminates the given worker, i.e. based on a UI action.
   CONTENT_EXPORT void TerminateWorker(int worker_route_id);
 
+  CONTENT_EXPORT const content::ChildProcessData& GetData();
+
   typedef std::list<WorkerInstance> Instances;
   const Instances& instances() const { return instances_; }
 
   const content::ResourceContext* resource_context() const {
     return resource_context_;
   }
 
  protected:
   friend class content::WorkerServiceImpl;
 
   Instances& mutable_instances() { return instances_; }
 
  private:
-  // Called when the process has been launched successfully.
+  // BrowserChildProcessHostDelegate implementation:
   virtual void OnProcessLaunched() OVERRIDE;
+  virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
 
   // Creates and adds the message filters.
   void CreateMessageFilters(int render_process_id);
 
-  // IPC::Channel::Listener implementation:
-  // Called when a message arrives from the worker process.
-  virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
-
   void OnWorkerContextClosed(int worker_route_id);
   void OnAllowDatabase(int worker_route_id,
                        const GURL& url,
                        const string16& name,
                        const string16& display_name,
                        unsigned long estimated_size,
                        bool* result);
   void OnAllowFileSystem(int worker_route_id,
                          const GURL& url,
                          bool* result);
@@ skipping 11 matching lines @@
 
   Instances instances_;
 
   const content::ResourceContext* const resource_context_;
 
   // A reference to the filter associated with this worker process.  We need to
   // keep this around since we'll use it when forward messages to the worker
   // process.
   scoped_refptr<WorkerMessageFilter> worker_message_filter_;
 
+  scoped_ptr<BrowserChildProcessHost> process_;
+
   DISALLOW_COPY_AND_ASSIGN(WorkerProcessHost);
 };
 
+class WorkerProcessHostIterator
+    : public content::BrowserChildProcessHostTypeIterator<WorkerProcessHost> {
+ public:
+  WorkerProcessHostIterator()
+      : content::BrowserChildProcessHostTypeIterator<WorkerProcessHost>(
+          content::PROCESS_TYPE_WORKER) {
+  }
+};
+
 #endif  // CONTENT_BROWSER_WORKER_HOST_WORKER_PROCESS_HOST_H_