Return string literals as const wchar_t*.

chrome/common/terminate_on_heap_corruption_experiment_win.cc

 // Copyright 2014 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 "chrome/common/terminate_on_heap_corruption_experiment_win.h"
 
 #include "base/command_line.h"
 #include "base/metrics/field_trial.h"
 #include "base/win/registry.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_version_info.h"
 
 #if defined(OS_WIN)
 #if defined(GOOGLE_CHROME_BUILD)
 #define PRODUCT_STRING_PATH L"Google\\Chrome"
 #elif defined(CHROMIUM_BUILD)
 #define PRODUCT_STRING_PATH L"Chromium"
 #else
 #error Unknown branding
 #endif
 #endif  // defined(OS_WIN)
 
 namespace {
 
-wchar_t* GetBeaconKeyPath() {
+const wchar_t* GetBeaconKeyPath() {
   chrome::VersionInfo::Channel channel = chrome::VersionInfo::CHANNEL_UNKNOWN;
 
   // We are called quite early, before the CommandLine is initialized. We don't
   // want to permanently initialize it because ContentMainRunner::Initialize
   // sets some locale-related stuff to make sure it is parsed properly. But we
   // can temporarily initialize it for the purpose of determining if we are
   // Canary.
   if (!CommandLine::InitializedForCurrentProcess()) {
     CommandLine::Init(0, NULL);
     channel = chrome::VersionInfo::GetChannel();
@@ skipping 21 matching lines @@
 void InitializeDisableTerminateOnHeapCorruptionExperiment() {
   base::win::RegKey regkey(HKEY_CURRENT_USER);
 
   if (base::FieldTrialList::FindFullName("TerminateOnProcessHeapCorruption") ==
       "Disabled") {
     regkey.CreateKey(GetBeaconKeyPath(), KEY_SET_VALUE);
   } else {
     regkey.DeleteKey(GetBeaconKeyPath());
   }
 }