Pass the size of the array to GetModuleFileName.

content/browser/accessibility/browser_accessibility_state_impl_win.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.
 
 #include "content/browser/accessibility/browser_accessibility_state_impl.h"
 
 #include <windows.h>
 #include <psapi.h>
 
 #include "base/files/file_path.h"
+#include "base/macros.h"
 #include "base/metrics/histogram.h"
 #include "base/strings/string_util.h"
 
 namespace content {
 
 void BrowserAccessibilityStateImpl::UpdatePlatformSpecificHistograms() {
   // NOTE: this method is run from the file thread to reduce jank, since
   // there's no guarantee these system calls will return quickly. Be careful
   // not to add any code that isn't safe to run from a non-main thread!
 
@@ skipping 28 matching lines @@
     return;
 
   // Look for DLLs of assistive technology known to work with Chrome.
   bool jaws = false;
   bool nvda = false;
   bool satogo = false;
   bool zoomtext = false;
   size_t module_count = bytes_required / sizeof(HMODULE);
   for (size_t i = 0; i < module_count; i++) {
     TCHAR filename[MAX_PATH];
-    GetModuleFileName(modules[i], filename, sizeof(filename));
+    GetModuleFileName(modules[i], filename, arraysize(filename));
     base::string16 module_name(base::FilePath(filename).BaseName().value());
     if (LowerCaseEqualsASCII(module_name, "fsdomsrv.dll"))
       jaws = true;
     if (LowerCaseEqualsASCII(module_name, "vbufbackend_gecko_ia2.dll"))
       nvda = true;
     if (LowerCaseEqualsASCII(module_name, "stsaw32.dll"))
       satogo = true;
     if (LowerCaseEqualsASCII(module_name, "zslhook.dll"))
       zoomtext = true;
   }
 
   UMA_HISTOGRAM_BOOLEAN("Accessibility.WinJAWS", jaws);
   UMA_HISTOGRAM_BOOLEAN("Accessibility.WinNVDA", nvda);
   UMA_HISTOGRAM_BOOLEAN("Accessibility.WinSAToGo", satogo);
   UMA_HISTOGRAM_BOOLEAN("Accessibility.WinZoomText", zoomtext);
 }
 
 }  // namespace content