mini_installer: Change to use _countof rather than base's arraysize macro.

chrome/installer/mini_installer/decompress.cc

Index: chrome/installer/mini_installer/decompress.cc
diff --git a/chrome/installer/mini_installer/decompress.cc b/chrome/installer/mini_installer/decompress.cc
index ed9098a85211d735ed004ba4f6f02e48e55b1d0e..4ace5ddd64f1c23c190d448ca076c4b19d7d612d 100644
--- a/chrome/installer/mini_installer/decompress.cc
+++ b/chrome/installer/mini_installer/decompress.cc
@@ -5,6 +5,7 @@
 #include <windows.h>  // NOLINT
 #include <fcntl.h>  // for _O_* constants
 #include <fdi.h>
+#include <stdlib.h>

[grt (UTC plus 2), 2015/05/06 18:10:15]

is this still needed?

[tfarina, 2015/05/06 18:16:07]

Done.

 
 #include "chrome/installer/mini_installer/decompress.h"
 
@@ -190,13 +191,14 @@ bool InitializeFdi() {
       L"C:\\Windows\\system32\\cabinet.dll",
     };
 
-    wchar_t path[MAX_PATH] = {0};
-    for (int i = 0; i < arraysize(candidate_paths); ++i) {
+    static const DWORD kBufferSize = MAX_PATH;
+    wchar_t path[kBufferSize];
+    for (const wchar_t* candidate_path : candidate_paths) {
       path[0] = L'\0';
-      DWORD result = ::ExpandEnvironmentStringsW(candidate_paths[i],
-                                                 path, arraysize(path));
+      DWORD result = ::ExpandEnvironmentStringsW(candidate_path,
+                                                 path, kBufferSize);
 
-      if (result > 0 && result <= arraysize(path))
+      if (result > 0 && result <= kBufferSize)
         g_fdi = ::LoadLibraryExW(path, NULL, LOAD_WITH_ALTERED_SEARCH_PATH);
 
       if (g_fdi)