Stats for the renderers are all broken, because of this change:...

chrome/app/chrome_dll_main.cc

Index: chrome/app/chrome_dll_main.cc
===================================================================
--- chrome/app/chrome_dll_main.cc	(revision 10695)
+++ chrome/app/chrome_dll_main.cc	(working copy)
@@ -266,6 +266,18 @@
     return 1;
 #endif
 
+  int browser_pid;
+  std::wstring process_type =
+    parsed_command_line.GetSwitchValue(switches::kProcessType);
+  if (process_type.empty()) {
+    browser_pid = base::GetCurrentProcId();
+  } else {
+    std::wstring channel_name =
+      parsed_command_line.GetSwitchValue(switches::kProcessChannelID);
+
+    browser_pid = _wtoi(channel_name.c_str());
+    DCHECK(browser_pid != 0);
+  }
   SetupCRT(parsed_command_line);
 
   // Initialize the Chrome path provider.
@@ -279,7 +291,7 @@
   // TODO(port): we probably need to shut this down correctly to avoid
   // leaking shared memory regions on posix platforms.
   std::string statsfile = chrome::kStatsFilename;
-  std::string pid_string = StringPrintf("-%d", base::GetCurrentProcId());
+  std::string pid_string = StringPrintf("-%d", browser_pid);
   statsfile += pid_string;
   StatsTable *stats_table = new StatsTable(statsfile,
       chrome::kStatsMaxThreads, chrome::kStatsMaxCounters);
@@ -295,9 +307,6 @@
   if (parsed_command_line.HasSwitch(switches::kMessageLoopHistogrammer))
     MessageLoop::EnableHistogrammer(true);
 
-  std::wstring process_type =
-    parsed_command_line.GetSwitchValue(switches::kProcessType);
-
   // Checks if the sandbox is enabled in this process and initializes it if this
   // is the case. The crash handler depends on this so it has to be done before
   // its initialization.