Fix building ASAN instrumented executables with custom entrypoints

remoting/host/win/entry_point.cc

Index: remoting/host/win/entry_point.cc
diff --git a/remoting/host/win/entry_point.cc b/remoting/host/win/entry_point.cc
index 0d711f27807d54efeece6c29533675cf75759202..4f5d6702efbb7b2d75defb24e453160595d89055 100644
--- a/remoting/host/win/entry_point.cc
+++ b/remoting/host/win/entry_point.cc
@@ -14,3 +14,21 @@ void HostEntryPoint() {
   int exit_code = remoting::HostMain(0, nullptr);
   ExitProcess(exit_code);
 }
+
+#if defined(ADDRESS_SANITIZER)
+// Executables instrumented with ASAN need CRT functions. We do not use
+// the /ENTRY switch for ASAN instrumented executable and a "main" function
+// is required.
+int WINAPI WinMain(HINSTANCE hInstance,

[grt (UTC plus 2), 2017/01/16 15:41:17]

wWinMain here and wmain below -- i think this is built with /DUNICODE like
everything else.

[etienneb, 2017/01/16 16:58:37]

Done.

+                   HINSTANCE hPrevInstance,
+                   LPSTR lpCmdLine,
+                   int nCmdShow) {
+  HostEntryPoint();
+  return 0;
+}
+
+int main() {
+  HostEntryPoint();
+  return 0;
+}
+#endif