Switch ExitCodeWatcher to base::Process.

chrome/chrome_watcher/chrome_watcher_main.cc

Index: chrome/chrome_watcher/chrome_watcher_main.cc
diff --git a/chrome/chrome_watcher/chrome_watcher_main.cc b/chrome/chrome_watcher/chrome_watcher_main.cc
index ea6756b9e6ed6df33ada705fd9cd5ba356b87fa5..6d35d0c9f4463f54b90aa678119dcb81eb72c299 100644
--- a/chrome/chrome_watcher/chrome_watcher_main.cc
+++ b/chrome/chrome_watcher/chrome_watcher_main.cc
@@ -7,7 +7,7 @@
 #include "base/at_exit.h"
 #include "base/command_line.h"
 #include "base/logging_win.h"
-#include "base/process/process_handle.h"
+#include "base/process/process.h"
 #include "base/template_util.h"
 #include "components/browser_watcher/exit_code_watcher_win.h"
 #include "components/browser_watcher/exit_funnel_win.h"
@@ -44,29 +44,12 @@ extern "C" int WatcherMain(const base::char16* registry_path) {
   // Attempt to wait on our parent process, and record its exit status.
   if (exit_code_watcher.ParseArguments(
         *base::CommandLine::ForCurrentProcess())) {
-    base::ProcessHandle dupe = base::kNullProcessHandle;
-    // Duplicate the process handle for the exit funnel due to the wonky
-    // process handle lifetime management in base.
-    if (!::DuplicateHandle(base::GetCurrentProcessHandle(),
-                           exit_code_watcher.process(),
-                           base::GetCurrentProcessHandle(),
-                           &dupe,
-                           0,
-                           FALSE,
-                           DUPLICATE_SAME_ACCESS)) {
-      dupe = base::kNullProcessHandle;
-    }
-
     // Wait on the process.
     exit_code_watcher.WaitForExit();
 
-    if (dupe != base::kNullProcessHandle) {
-      browser_watcher::ExitFunnel funnel;
-      funnel.Init(registry_path, dupe);
-      funnel.RecordEvent(L"BrowserExit");
-
-      base::CloseProcessHandle(dupe);
-    }
+    browser_watcher::ExitFunnel funnel;
+    funnel.Init(registry_path, exit_code_watcher.process().Handle());
+    funnel.RecordEvent(L"BrowserExit");
 
     ret = 0;
   }