Implement SharedWorkerServiceImpl::CreateWorker and SharedWorkerInstance and SharedWorkerHost

content/browser/shared_worker/shared_worker_host.h

 // Copyright 2014 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_CHILD_WEBFALLBACKTHEMEENGINE_IMPL_H_
-#define CONTENT_CHILD_WEBFALLBACKTHEMEENGINE_IMPL_H_
+#ifndef CONTENT_BROWSER_SHARED_WORKER_SHARED_WORKER_HOST_H_
+#define CONTENT_BROWSER_SHARED_WORKER_SHARED_WORKER_HOST_H_
+
+#include <vector>
 
 #include "base/memory/scoped_ptr.h"
-#include "third_party/WebKit/public/platform/WebFallbackThemeEngine.h"
-
-namespace ui {
-class FallbackTheme;
-}
 
 namespace content {
+class SharedWorkerMessageFilter;
+class SharedWorkerInstance;
 
-class WebFallbackThemeEngineImpl : public blink::WebFallbackThemeEngine {
+// The SharedWorkerHost is the interface that represents the browser side of
+// the browser <-> worker communication channel.
+class SharedWorkerHost {
  public:
-  WebFallbackThemeEngineImpl();
-  virtual ~WebFallbackThemeEngineImpl();
+  explicit SharedWorkerHost(SharedWorkerInstance* instance);
+  ~SharedWorkerHost();
 
-  // WebFallbackThemeEngine methods:
-  virtual blink::WebSize getSize(blink::WebFallbackThemeEngine::Part);
-  virtual void paint(
-      blink::WebCanvas* canvas,
-      blink::WebFallbackThemeEngine::Part part,
-      blink::WebFallbackThemeEngine::State state,
-      const blink::WebRect& rect,
-      const blink::WebFallbackThemeEngine::ExtraParams* extra_params);
+  // Starts the SharedWorker in the renderer process which is associated with
+  // |filter|.
+  void Init(SharedWorkerMessageFilter* filter);
+
+  SharedWorkerInstance* instance() { return instance_.get(); }
+  int worker_route_id() const { return worker_route_id_; }
 
  private:
-  scoped_ptr<ui::FallbackTheme> theme_;
+  scoped_ptr<SharedWorkerInstance> instance_;
+  int worker_route_id_;
 
-  DISALLOW_COPY_AND_ASSIGN(WebFallbackThemeEngineImpl);
+  DISALLOW_COPY_AND_ASSIGN(SharedWorkerHost);
 };
-
 }  // namespace content
 
-#endif  // CONTENT_CHILD_WEBFALLBACKTHEMEENGINE_IMPL_H_
+#endif  // CONTENT_BROWSER_SHARED_WORKER_SHARED_WORKER_HOST_H_