Removing --host-binary parameter in preparation to the coming me2me host refactoring.

remoting/host/sas_injector_win.cc

Index: remoting/host/sas_injector_win.cc
diff --git a/remoting/host/sas_injector_win.cc b/remoting/host/sas_injector_win.cc
index a33677048a7a757a4da18301292c46281eeb1ddb..0bf453f6a69c63f6d8f7e0e7d00eceb55346561a 100644
--- a/remoting/host/sas_injector_win.cc
+++ b/remoting/host/sas_injector_win.cc
@@ -131,14 +131,14 @@ bool SasInjectorWin::InjectSas() {
   // Load sas.dll. The library is expected to be in the same folder as this
   // binary.
   if (!sas_dll_.is_valid()) {
-    FilePath exe_path;
-    if (!PathService::Get(base::FILE_EXE, &exe_path)) {
+    FilePath dir_path;
+    if (!PathService::Get(base::DIR_EXE, &dir_path)) {
       LOG(ERROR) << "Failed to get the executable file name.";
       return false;
     }
 
-    sas_dll_.Reset(base::LoadNativeLibrary(
-        exe_path.DirName().Append(kSasDllFileName), NULL));
+    sas_dll_.Reset(base::LoadNativeLibrary(dir_path.Append(kSasDllFileName),
+                                           NULL));
   }
   if (!sas_dll_.is_valid()) {
     LOG(ERROR) << "Failed to load '" << kSasDllFileName << "'";