DevTools: Enable network emulation on Service Workers

content/browser/devtools/forwarding_agent_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_BROWSER_DEVTOOLS_FORWARDING_AGENT_HOST_H_
 #define CONTENT_BROWSER_DEVTOOLS_FORWARDING_AGENT_HOST_H_
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "content/browser/devtools/devtools_agent_host_impl.h"
@@ skipping 11 matching lines @@
  private:
   ~ForwardingAgentHost() override;
 
   // DevToolsExternalAgentProxy implementation.
   void DispatchOnClientHost(const std::string& message) override;
   void ConnectionClosed() override;
 
   // DevToolsAgentHostImpl implementation.
   void Attach() override;
   void Detach() override;
-  void DispatchProtocolMessage(const std::string& message) override;
+  bool DispatchProtocolMessage(const std::string& message) override;
 
   // DevToolsAgentHost implementation
   Type GetType() override;
   std::string GetTitle() override;
   GURL GetURL() override;
   bool Activate() override;
   bool Close() override;
 
   scoped_ptr<DevToolsExternalAgentProxyDelegate> delegate_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_DEVTOOLS_FORWARDING_AGENT_HOST_H_