Add base:: qualifiers for FilePath uses.

remoting/host/remoting_me2me_host.cc

Index: remoting/host/remoting_me2me_host.cc
diff --git a/remoting/host/remoting_me2me_host.cc b/remoting/host/remoting_me2me_host.cc
index 708868ceda061224c212c396f139a13522d76c72..d676b8f93d1707624ea4e19c1002e5cbc6c76023 100644
--- a/remoting/host/remoting_me2me_host.cc
+++ b/remoting/host/remoting_me2me_host.cc
@@ -1106,7 +1106,7 @@ int HostProcessMain(int argc, char** argv) {
   // Mark the process as DPI-aware, so Windows won't scale coordinates in APIs.
   // N.B. This API exists on Vista and above.
   if (base::win::GetVersion() >= base::win::VERSION_VISTA) {
-    FilePath path(base::GetNativeLibraryName(UTF8ToUTF16("user32")));
+    base::FilePath path(base::GetNativeLibraryName(UTF8ToUTF16("user32")));
     base::ScopedNativeLibrary user32(path);
     CHECK(user32.is_valid());