Remove implicit HANDLE conversions from chrome.

chrome/installer/setup/uninstall.cc

 // 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.
 //
 // This file defines the methods useful for uninstalling Chrome.
 
 #include "chrome/installer/setup/uninstall.h"
 
 #include <windows.h>
 
@@ skipping 264 matching lines @@
   HWND window = FindWindow(installer::kChromeFrameHelperWndClass, NULL);
   if (!::IsWindow(window))
     return;
 
   const DWORD kWaitMs = 3000;
 
   DWORD pid = 0;
   ::GetWindowThreadProcessId(window, &pid);
   DCHECK_NE(pid, 0U);
   base::win::ScopedHandle process(::OpenProcess(SYNCHRONIZE, FALSE, pid));
-  PLOG_IF(INFO, !process) << "Failed to open process: " << pid;
+  PLOG_IF(INFO, !process.IsValid()) << "Failed to open process: " << pid;
 
   bool kill = true;
   if (SendMessageTimeout(window, WM_CLOSE, 0, 0, SMTO_BLOCK, kWaitMs, NULL) &&
-      process) {
+      process.IsValid()) {
     VLOG(1) << "Waiting for " << installer::kChromeFrameHelperExe;
-    DWORD wait = ::WaitForSingleObject(process, kWaitMs);
+    DWORD wait = ::WaitForSingleObject(process.Get(), kWaitMs);
     if (wait != WAIT_OBJECT_0) {
       LOG(WARNING) << "Wait for " << installer::kChromeFrameHelperExe
                    << " to exit failed or timed out.";
     } else {
       kill = false;
       VLOG(1) << installer::kChromeFrameHelperExe << " exited normally.";
     }
   }
 
   if (kill) {
@@ skipping 1165 matching lines @@
     // If we need a reboot to continue, schedule the parent directories for
     // deletion unconditionally. If they are not empty, the session manager
     // will not delete them on reboot.
     ScheduleParentAndGrandparentForDeletion(target_path);
   } else if (DeleteChromeDirectoriesIfEmpty(target_path) == DELETE_FAILED) {
     *uninstall_status = UNINSTALL_FAILED;
   }
 }
 
 }  // namespace installer