POSIX: Get render_process_host to build.

chrome/browser/renderer_host/render_process_host.cc

 // Copyright (c) 2009 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/renderer_host/render_process_host.h"
 
 #include "base/rand_util.h"
 #include "base/sys_info.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/notification_service.h"
 
 namespace {
 
 unsigned int GetMaxRendererProcessCount() {
-  // Defines the maximum number of renderer processes according to the amount
-  // of installed memory as reported by the OS. The table values are calculated
-  // by assuming that you want the renderers to use half of the installed ram
-  // and assuming that each tab uses ~25MB.
+  // Defines the maximum number of renderer processes according to the
+  // amount of installed memory as reported by the OS. The table
+  // values are calculated by assuming that you want the renderers to
+  // use half of the installed ram and assuming that each tab uses
+  // ~25MB.
   static const int kMaxRenderersByRamTier[] = {
     4,                                  // less than 256MB
     8,                                  // 256MB
     12,                                 // 512MB
     16,                                 // 768MB
   };
 
   static unsigned int max_count = 0;
   if (!max_count) {
-    int memory_tier = base::SysInfo::AmountOfPhysicalMemoryMB() / 256;
+    size_t memory_tier = base::SysInfo::AmountOfPhysicalMemoryMB() / 256;
     if (memory_tier >= arraysize(kMaxRenderersByRamTier))
       max_count = chrome::kMaxRendererProcessCount;
     else
       max_count = kMaxRenderersByRamTier[memory_tier];
   }
   return max_count;
 }
 
 // Returns true if the given host is suitable for launching a new view
 // associated with the given profile.
@@ skipping 111 matching lines @@
 
   return NULL;
 }
 
 void RenderProcessHost::Unregister() {
   if (host_id_ >= 0) {
     all_hosts.Remove(host_id_);
     host_id_ = -1;
   }
 }