Revert 111695 - Have content/ create and destroy its own threads.

content/public/browser/browser_main_parts.h

Index: content/public/browser/browser_main_parts.h
===================================================================
--- content/public/browser/browser_main_parts.h	(revision 111697)
+++ content/public/browser/browser_main_parts.h	(working copy)
@@ -8,7 +8,6 @@
 
 #include "base/basictypes.h"
 #include "content/common/content_export.h"
-#include "content/public/browser/browser_thread.h"
 
 namespace content {
 
@@ -65,24 +64,6 @@
   // Allows an embedder to do any extra toolkit initialization.
   virtual void ToolkitInitialized() = 0;
 
-  // Called just before any child threads owned by the content
-  // framework are created.
-  //
-  // The main message loop has been started at this point (but has not
-  // been run), and the toolkit has been initialized.
-  virtual void PreCreateThreads() = 0;
-
-  // Called once for each thread owned by the content framework just
-  // before and just after the thread object is created and started.
-  // This happens in the order of the threads' appearence in the
-  // BrowserThread::ID enumeration.  Note that there will be no such
-  // call for BrowserThread::UI, since it is the main thread of the
-  // application.
-  virtual void PreStartThread(BrowserThread::ID identifier) = 0;
-  virtual void PostStartThread(BrowserThread::ID identifier) = 0;
-
-  // This is called just before the main message loop is run.  The
-  // various browser threads have all been created at this point
   virtual void PreMainMessageLoopRun() = 0;
 
   // Returns true if the message loop was run, false otherwise.
@@ -90,22 +71,8 @@
   // May set |result_code|, which will be returned by |BrowserMain()|.
   virtual bool MainMessageLoopRun(int* result_code) = 0;
 
-  // This happens after the main message loop has stopped, but before
-  // threads are stopped.
   virtual void PostMainMessageLoopRun() = 0;
 
-  // Called once for each thread owned by the content framework just
-  // before and just after it is torn down. This is in reverse order
-  // of the threads' appearance in the BrowserThread::ID enumeration.
-  // Note that you will not receive such a call for BrowserThread::UI,
-  // since it is the main thread of the application.
-  virtual void PreStopThread(BrowserThread::ID identifier) = 0;
-  virtual void PostStopThread(BrowserThread::ID identifier) = 0;
-
-  // Called as the very last part of shutdown, after threads have been
-  // stopped and destroyed.
-  virtual void PostDestroyThreads() = 0;
-
  private:
   DISALLOW_COPY_AND_ASSIGN(BrowserMainParts);
 };