Add UMA stats for predicted process counts with out-of-process iframes.

content/browser/renderer_host/render_process_host_impl.h

 // 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.
 
 #ifndef CONTENT_BROWSER_RENDERER_HOST_BROWSER_RENDER_PROCESS_HOST_IMPL_H_
 #define CONTENT_BROWSER_RENDERER_HOST_BROWSER_RENDER_PROCESS_HOST_IMPL_H_
 
 #include <map>
 #include <queue>
 #include <string>
@@ skipping 138 matching lines @@
   // list.
   static void RegisterHost(int host_id, RenderProcessHost* host);
   static void UnregisterHost(int host_id);
 
   // Returns true if |host| is suitable for launching a new view with |site_url|
   // in the given |browser_context|.
   static bool IsSuitableHost(RenderProcessHost* host,
                              BrowserContext* browser_context,
                              const GURL& site_url);
 
-  // Returns whether the process-per-site model is in use (globally or just for
-  // the current site), in which case we should ensure there is only one
-  // RenderProcessHost per site for the entire browser context.
-  static bool ShouldUseProcessPerSite(BrowserContext* browser_context,
-                                      const GURL& url);
-
   // Returns an existing RenderProcessHost for |url| in |browser_context|,
   // if one exists.  Otherwise a new RenderProcessHost should be created and
   // registered using RegisterProcessHostForSite().
   // This should only be used for process-per-site mode, which can be enabled
   // globally with a command line flag or per-site, as determined by
   // SiteInstanceImpl::ShouldUseProcessPerSite.
   static RenderProcessHost* GetProcessHostForSite(
       BrowserContext* browser_context,
       const GURL& url);
 
@@ skipping 159 matching lines @@
   // Prevents the class from being added as a GpuDataManagerImpl observer more
   // than once.
   bool gpu_observer_registered_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderProcessHostImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_BROWSER_RENDER_PROCESS_HOST_IMPL_H_