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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "content/ppapi_plugin/plugin_process_dispatcher.h" | 5 #include "content/ppapi_plugin/plugin_process_dispatcher.h" |
| 6 | 6 |
| 7 #include "base/bind.h" | 7 #include "base/bind.h" |
| 8 #include "base/bind_helpers.h" | 8 #include "base/bind_helpers.h" |
| 9 #include "content/common/child_process.h" | 9 #include "content/common/child_process.h" |
| 10 | 10 |
| 11 namespace { | 11 namespace { |
| 12 | 12 |
| 13 // How long we wait before releasing the plugin process. | 13 // How long we wait before releasing the plugin process. |
| 14 const int kPluginReleaseTimeMs = 30 * 1000; // 30 seconds. | 14 const int kPluginReleaseTimeSeconds = 30; |
| 15 | 15 |
| 16 } // namespace | 16 } // namespace |
| 17 | 17 |
| 18 PluginProcessDispatcher::PluginProcessDispatcher( | 18 PluginProcessDispatcher::PluginProcessDispatcher( |
| 19 base::ProcessHandle remote_process_handle, | 19 base::ProcessHandle remote_process_handle, |
| 20 GetInterfaceFunc get_interface) | 20 GetInterfaceFunc get_interface) |
| 21 : ppapi::proxy::PluginDispatcher(remote_process_handle, get_interface) { | 21 : ppapi::proxy::PluginDispatcher(remote_process_handle, get_interface) { |
| 22 ChildProcess::current()->AddRefProcess(); | 22 ChildProcess::current()->AddRefProcess(); |
| 23 } | 23 } |
| 24 | 24 |
| 25 PluginProcessDispatcher::~PluginProcessDispatcher() { | 25 PluginProcessDispatcher::~PluginProcessDispatcher() { |
| 26 // Don't free the process right away. This timer allows the child process | 26 // Don't free the process right away. This timer allows the child process |
| 27 // to be re-used if the user rapidly goes to a new page that requires this | 27 // to be re-used if the user rapidly goes to a new page that requires this |
| 28 // plugin. This is the case for common plugins where they may be used on a | 28 // plugin. This is the case for common plugins where they may be used on a |
| 29 // source and destination page of a navigation. We don't want to tear down | 29 // source and destination page of a navigation. We don't want to tear down |
| 30 // and re-start processes each time in these cases. | 30 // and re-start processes each time in these cases. |
| 31 MessageLoop::current()->PostDelayedTask( | 31 MessageLoop::current()->PostDelayedTask( |
| 32 FROM_HERE, | 32 FROM_HERE, |
| 33 base::Bind(&ChildProcess::ReleaseProcess, | 33 base::Bind(&ChildProcess::ReleaseProcess, |
| 34 base::Unretained(ChildProcess::current())), | 34 base::Unretained(ChildProcess::current())), |
| 35 kPluginReleaseTimeMs); | 35 base::TimeDelta::FromSeconds(kPluginReleaseTimeSeconds)); |
| 36 } | 36 } |
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