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 class UtilityBlinkPlatformImpl;
  24
  25 #if defined(COMPILER_MSVC)
  26 // See explanation for other RenderViewHostImpl which is the same issue.
  27 #pragma warning(push)
  28 #pragma warning(disable: 4250)
  29 #endif
  30
  31 // This class represents the background thread where the utility task runs.
  32 class UtilityThreadImpl : public UtilityThread,
  33                           public ChildThreadImpl {
  34  public:
  35   UtilityThreadImpl();
  36   // Constructor that's used when running in single process mode.
  37   explicit UtilityThreadImpl(const InProcessChildThreadParams& params);
  38   ~UtilityThreadImpl() override;
  39   void Shutdown() override;
  40
  41   void ReleaseProcessIfNeeded() override;
  42
  43  private:
  44   void Init();
  45
  46   // ChildThread implementation.
  47   bool OnControlMessageReceived(const IPC::Message& msg) override;
  48
  49   // IPC message handlers.
  50   void OnBatchModeStarted();
  51   void OnBatchModeFinished();
  52
  53 #if defined(OS_POSIX) && defined(ENABLE_PLUGINS)
  54   void OnLoadPlugins(const std::vector<base::FilePath>& plugin_paths);
  55 #endif
  56
  57   // True when we're running in batch mode.
  58   bool batch_mode_;
  59
  60   scoped_ptr<UtilityBlinkPlatformImpl> blink_platform_impl_;
  61
  62   DISALLOW_COPY_AND_ASSIGN(UtilityThreadImpl);
  63 };
  64
  65 #if defined(COMPILER_MSVC)
  66 #pragma warning(pop)
  67 #endif
  68
  69 }  // namespace content
  70
  71 #endif  // CONTENT_UTILITY_UTILITY_THREAD_IMPL_H_