Refactor plugin process code in the browser process so that the browser/about:memory/task manager/metrics code doesn't depend on PluginProcessHost pointers. In a future changelist I'll add one central child process registry in the browser process.

Review URL: http://codereview.chromium.org/20196

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@9621 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 66 insertions, 0 deletions

diff --git a/chrome/common/child_process_info.h b/chrome/common/child_process_info.h
new file mode 100644
index 0000000..2007bcb
--- /dev/null
+++ b/chrome/common/child_process_info.h
@@ -0,0 +1,66 @@
+// Copyright (c) 2009 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 CHROME_COMMON_CHILD_PROCESS_INFO_H_
+#define CHROME_COMMON_CHILD_PROCESS_INFO_H_
+
+#include <string>
+#include "base/basictypes.h"
+#include "base/process.h"
+
+// Holds information about a child process.
+class ChildProcessInfo {
+ public:
+  enum ProcessType {
+   BROWSER_PROCESS,
+   RENDER_PROCESS,
+   PLUGIN_PROCESS,
+   WORKER_PROCESS,
+   UNKNOWN_PROCESS,
+  };
+
+  // Returns the type of the process.
+  ProcessType type() const { return type_; }
+
+  // Returns the name of the process.  i.e. for plugins it might be Flash, while
+  // for workers it might be the domain that it's from.
+  std::wstring name() const { return name_; }
+
+  // Getter to the process.
+  base::Process& process() { return process_; }
+
+  // Returns an English name of the process type, should only be used for non
+  // user-visible strings, or debugging pages like about:memory.
+  static std::wstring GetTypeNameInEnglish(ProcessType type);
+
+  // Returns a localized title for the child process.  For example, a plugin
+  // process would be "Plug-in: Flash" when name is "Flash".
+  std::wstring GetLocalizedTitle() const;
+
+  // We define the < operator so that the ChildProcessInfo can be used as a key
+  // in a std::map.
+  bool operator <(const ChildProcessInfo& rhs) const {
+    if (process_.handle() != rhs.process_.handle())
+      return process_ .handle() < rhs.process_.handle();
+    return name_ < rhs.name_;
+  }
+
+  bool operator ==(const ChildProcessInfo& rhs) const {
+    return (process_.handle() == rhs.process_.handle()) && (name_ == rhs.name_);
+  }
+
+ protected:
+  void set_type(ProcessType type) { type_ = type; }
+  void set_name(const std::wstring& name) { name_ = name; }
+
+ private:
+  ProcessType type_;
+  std::wstring name_;
+
+  // The handle to the process.
+  base::Process process_;
+};
+
+#endif  // CHROME_COMMON_CHILD_PROCESS_INFO_H_
+