Cleaned up usage of std::wstring in src/remoting. Added presubmit warning supressions for the reman…

remoting/host/usage_stats_consent_win.cc

Index: remoting/host/usage_stats_consent_win.cc
diff --git a/remoting/host/usage_stats_consent_win.cc b/remoting/host/usage_stats_consent_win.cc
index cefb1cf2beaccc5119ed4e5076e3f3fcb31d4275..f0d0a1dc5f9a63a26b521ded2e7ffd3362eb4201 100644
--- a/remoting/host/usage_stats_consent_win.cc
+++ b/remoting/host/usage_stats_consent_win.cc
@@ -24,6 +24,7 @@ const wchar_t kOmahaClientStateMedium[] = L"ClientStateMedium";
 const wchar_t kOmahaUsagestatsValue[] = L"usagestats";
 
 LONG ReadUsageStatsValue(const wchar_t* state_key, DWORD* usagestats_out) {
+  // presubmit: allow wstring
   std::wstring client_state = StringPrintf(kOmahaClientStateKeyFormat,
                                            state_key,
                                            remoting::kHostOmahaAppid);
@@ -71,6 +72,7 @@ bool IsUsageStatsAllowed() {
 
 bool SetUsageStatsConsent(bool allowed) {
   DWORD value = allowed;
+  // presubmit: allow wstring
   std::wstring client_state = StringPrintf(kOmahaClientStateKeyFormat,
                                            kOmahaClientStateMedium,
                                            kHostOmahaAppid);