Make TaskManager not use ChildProcessInfo. After this change, I will make BrowserChildProcessHost...

content/common/child_process_info.h

 // Copyright (c) 2011 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 CONTENT_COMMON_CHILD_PROCESS_INFO_H_
 #define CONTENT_COMMON_CHILD_PROCESS_INFO_H_
 #pragma once
 
 #include <string>
 
@@ skipping 31 matching lines @@
   // process ID, and will be unique for all types of child process for
   // one run of the browser.
   int id() const { return id_; }
 
   void SetProcessBackgrounded() const { process_.SetProcessBackgrounded(true); }
 
   // 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::string GetTypeNameInEnglish(content::ProcessType type);
 
-  // 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 false;
-  }
-
-  bool operator ==(const ChildProcessInfo& rhs) const {
-    return process_.handle() == rhs.process_.handle();
-  }
-
   // Generates a unique channel name for a child renderer/plugin process.
   // The "instance" pointer value is baked into the channel id.
   static std::string GenerateRandomChannelID(void* instance);
 
   // Returns a unique ID to identify a child process. On construction, this
   // function will be used to generate the id_, but it is also used to generate
   // IDs for the RenderProcessHost, which doesn't inherit from us, and whose IDs
   // must be unique for all child processes.
   //
   // This function is threadsafe since RenderProcessHost is on the UI thread,
@@ skipping 16 matching lines @@
   content::ProcessType type_;
   string16 name_;
   string16 version_;
   int id_;
 
   // The handle to the process.
   mutable base::Process process_;
 };
 
 #endif  // CONTENT_COMMON_CHILD_PROCESS_INFO_H_