Reland of place string::find(prefix) == 0 pattern with base::StartsWith().

sandbox/win/src/win_utils.cc

 // Copyright (c) 2011 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 "sandbox/win/src/win_utils.h"
 
 #include <stddef.h>
 
 #include <map>
 #include <memory>
@@ skipping 114 matching lines @@
   for (size_t i = 0; i < arraysize(kKnownKey); ++i) {
     if (name == kKnownKey[i].name)
       return kKnownKey[i].key;
   }
 
   return NULL;
 }
 
 bool ResolveRegistryName(base::string16 name, base::string16* resolved_name) {
   for (size_t i = 0; i < arraysize(kKnownKey); ++i) {
-    if (name.find(kKnownKey[i].name) == 0) {
+    if (base::StartsWith(name, kKnownKey[i].name,
+                         base::CompareCase::SENSITIVE)) {
       HKEY key;
       DWORD disposition;
       if (ERROR_SUCCESS != ::RegCreateKeyEx(kKnownKey[i].key, L"", 0, NULL, 0,
                                             MAXIMUM_ALLOWED, NULL, &key,
                                             &disposition))
         return false;
 
       bool result = GetPathFromHandle(key, resolved_name);
       ::RegCloseKey(key);
 
@@ skipping 278 matching lines @@
     ::InterlockedCompareExchangePointer(
         reinterpret_cast<PVOID volatile*>(&ntdll), ntdll_local, NULL);
 
   }
 
   CHECK_NT(ntdll);
   FARPROC* function_ptr = reinterpret_cast<FARPROC*>(ptr);
   *function_ptr = ::GetProcAddress(ntdll, name);
   CHECK_NT(*function_ptr);
 }