content/utility/utility_thread_impl.h

   1 // Copyright (c) 2012 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 CONTENT_UTILITY_UTILITY_THREAD_IMPL_H_
   6 #define CONTENT_UTILITY_UTILITY_THREAD_IMPL_H_
   7
   8 #include <string>
   9 #include <vector>
  10
  11 #include "base/basictypes.h"
  12 #include "base/compiler_specific.h"
  13 #include "content/child/child_thread_impl.h"
  14 #include "content/common/content_export.h"
  15 #include "content/public/utility/utility_thread.h"
  16
  17 namespace base {
  18 class FilePath;
  19 }
  20
  21 namespace content {
  22 class BlinkPlatformImpl;
  23
  24 #if defined(COMPILER_MSVC)
  25 // See explanation for other RenderViewHostImpl which is the same issue.
  26 #pragma warning(push)
  27 #pragma warning(disable: 4250)
  28 #endif
  29
  30 // This class represents the background thread where the utility task runs.
  31 class UtilityThreadImpl : public UtilityThread,
  32                           public ChildThreadImpl {
  33  public:
  34   UtilityThreadImpl();
  35   // Constructor that's used when running in single process mode.
  36   explicit UtilityThreadImpl(const InProcessChildThreadParams& params);
  37   ~UtilityThreadImpl() override;
  38   void Shutdown() override;
  39
  40   void ReleaseProcessIfNeeded() override;
  41
  42  private:
  43   void Init();
  44
  45   // ChildThread implementation.
  46   bool OnControlMessageReceived(const IPC::Message& msg) override;
  47
  48   // IPC message handlers.
  49   void OnBatchModeStarted();
  50   void OnBatchModeFinished();
  51
  52 #if defined(OS_POSIX) && defined(ENABLE_PLUGINS)
  53   void OnLoadPlugins(const std::vector<base::FilePath>& plugin_paths);
  54 #endif
  55
  56   // True when we're running in batch mode.
  57   bool batch_mode_;
  58
  59   scoped_ptr<BlinkPlatformImpl> blink_platform_impl_;
  60
  61   DISALLOW_COPY_AND_ASSIGN(UtilityThreadImpl);
  62 };
  63
  64 #if defined(COMPILER_MSVC)
  65 #pragma warning(pop)
  66 #endif
  67
  68 }  // namespace content
  69
  70 #endif  // CONTENT_UTILITY_UTILITY_THREAD_IMPL_H_