extensions/browser/mojo/keep_alive_impl.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef EXTENSIONS_BROWSER_MOJO_KEEP_ALIVE_IMPL_H_
   6 #define EXTENSIONS_BROWSER_MOJO_KEEP_ALIVE_IMPL_H_
   7
   8 #include "base/callback.h"
   9 #include "extensions/common/mojo/keep_alive.mojom.h"
  10 #include "third_party/mojo/src/mojo/public/cpp/bindings/interface_request.h"
  11 #include "third_party/mojo/src/mojo/public/cpp/bindings/strong_binding.h"
  12
  13 namespace content {
  14 class BrowserContext;
  15 }
  16
  17 namespace extensions {
  18 class Extension;
  19
  20 // An RAII mojo service implementation for extension keep alives. This adds a
  21 // keep alive on construction and removes it on destruction.
  22 class KeepAliveImpl : public KeepAlive {
  23  public:
  24   // Create a keep alive for |extension| running in |context| and connect it to
  25   // |request|. When the requester closes its pipe, the keep alive ends.
  26   static void Create(content::BrowserContext* context,
  27                      const Extension* extension,
  28                      mojo::InterfaceRequest<KeepAlive> request);
  29
  30  private:
  31   KeepAliveImpl(content::BrowserContext* context,
  32                 const Extension* extension,
  33                 mojo::InterfaceRequest<KeepAlive> request);
  34   ~KeepAliveImpl() override;
  35
  36   content::BrowserContext* context_;
  37   const Extension* extension_;
  38   mojo::StrongBinding<KeepAlive> binding_;
  39
  40   DISALLOW_COPY_AND_ASSIGN(KeepAliveImpl);
  41 };
  42
  43 }  // namespace extensions
  44
  45 #endif  // EXTENSIONS_BROWSER_MOJO_KEEP_ALIVE_IMPL_H_