Add a Content API around BrowserChildProcessHost, similar to what was done with ChildProcessHost....

chrome/browser/memory_details_mac.cc

 // Copyright (c) 2012 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.
 
 #include "chrome/browser/memory_details.h"
 
 #include <set>
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/file_path.h"
 #include "base/file_version_info.h"
 #include "base/mac/mac_util.h"
 #include "base/process_util.h"
 #include "base/string_util.h"
 #include "base/threading/thread.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/process_info_snapshot.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_version_info.h"
 #include "chrome/common/url_constants.h"
-#include "content/browser/browser_child_process_host.h"
 #include "content/browser/renderer_host/backing_store_manager.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/common/process_type.h"
 #include "grit/chromium_strings.h"
 #include "ui/base/l10n/l10n_util.h"
 
 using content::BrowserThread;
 
 // TODO(viettrungluu): Many of the TODOs below are subsumed by a general need to
 // refactor the about:memory code (not just on Mac, but probably on other
@@ skipping 198 matching lines @@
     }
   }
 
   // Memory info.
   process_info.GetCommittedKBytesOfPID(info.pid, &info.committed);
   process_info.GetWorkingSetKBytesOfPID(info.pid, &info.working_set);
 
   // Add the process info to our list.
   process_data_[CHROME_BROWSER].processes.push_back(info);
 }