Adding a command line flag to specify renderer process limit

content/public/browser/render_process_host.h

Index: content/public/browser/render_process_host.h
diff --git a/content/public/browser/render_process_host.h b/content/public/browser/render_process_host.h
index 81a363640f6dd6bd5a58c8239ba2c81ec0492670..ff94f90999ac5343d824df05d5a10e2af2ab2dd7 100644
--- a/content/public/browser/render_process_host.h
+++ b/content/public/browser/render_process_host.h
@@ -225,9 +225,14 @@ class CONTENT_EXPORT RenderProcessHost : public IPC::Message::Sender,
       content::BrowserContext* browser_context, const GURL& site_url);
 
   // Overrides the default heuristic for limiting the max renderer process
-  // count.  This is useful for unit testing process limit behaviors.
+  // count.  This is useful for unit testing process limit behaviors and it is
+  // used to allow command line parameter to configure the max number of
+  // renderer processes.

[Charlie Reis, 2012/02/03 23:05:34]

We should either guarantee that it's only called at startup, or add a comment
here saying that.  We don't expect it to change at runtime.

[nasko, 2012/02/07 00:42:05]

Done.

   // A value of zero means to use the default heuristic.
-  static void SetMaxRendererProcessCountForTest(size_t count);
+  static void SetMaxRendererProcessCount(size_t count);
+
+  // Returns the current max number of renderer processes used by the browser.
+  static size_t GetMaxRendererProcessCount();

[Charlie Reis, 2012/02/03 23:05:34]

This isn't strictly needed here, but I know we'll need it in your next CL, so I
think it's fine to add it now.

[nasko, 2012/02/07 00:42:05]

Done.

 };
 
 }  // namespace content.