Remove the code to wait on disconnected child processes to get the exit code. This was done in r101…

content/browser/browser_child_process_host_impl.h

Index: content/browser/browser_child_process_host_impl.h
===================================================================
--- content/browser/browser_child_process_host_impl.h	(revision 145643)
+++ content/browser/browser_child_process_host_impl.h	(working copy)
@@ -10,9 +10,7 @@
 
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
-#include "base/memory/weak_ptr.h"
 #include "base/process.h"
-#include "base/synchronization/waitable_event_watcher.h"
 #include "content/browser/child_process_launcher.h"
 #include "content/public/browser/browser_child_process_host.h"
 #include "content/public/browser/child_process_data.h"
@@ -28,8 +26,7 @@
 class CONTENT_EXPORT BrowserChildProcessHostImpl :
     public content::BrowserChildProcessHost,
     public NON_EXPORTED_BASE(content::ChildProcessHostDelegate),
-    public ChildProcessLauncher::Client,
-    public base::WaitableEventWatcher::Delegate {
+    public ChildProcessLauncher::Client {
  public:
   BrowserChildProcessHostImpl(
       content::ProcessType type,
@@ -56,8 +53,6 @@
   virtual void SetName(const string16& name) OVERRIDE;
   virtual void SetHandle(base::ProcessHandle handle) OVERRIDE;
 
-  bool disconnect_was_alive() const { return disconnect_was_alive_; }
-
   // Returns the handle of the child process. This can be called only after
   // OnProcessLaunched is called or it will be invalid and may crash.
   base::ProcessHandle GetHandle() const;
@@ -92,21 +87,11 @@
   // ChildProcessLauncher::Client implementation.
   virtual void OnProcessLaunched() OVERRIDE;
 
-  // public base::WaitableEventWatcher::Delegate implementation:
-  virtual void OnWaitableEventSignaled(
-      base::WaitableEvent* waitable_event) OVERRIDE;
-
   content::ChildProcessData data_;
   content::BrowserChildProcessHostDelegate* delegate_;
   scoped_ptr<content::ChildProcessHost> child_process_host_;
 
   scoped_ptr<ChildProcessLauncher> child_process_;
-#if defined(OS_WIN)
-  base::WaitableEventWatcher child_watcher_;
-#else
-  base::WeakPtrFactory<BrowserChildProcessHostImpl> task_factory_;
-#endif
-  bool disconnect_was_alive_;
 };
 
 #endif  // CONTENT_BROWSER_BROWSER_CHILD_PROCESS_HOST_IMPL_H_