Add FilePath to base namespace.

remoting/host/win/unprivileged_process_delegate.h

Index: remoting/host/win/unprivileged_process_delegate.h
diff --git a/remoting/host/win/unprivileged_process_delegate.h b/remoting/host/win/unprivileged_process_delegate.h
index 06f6f9dee71743c62e1956e73019a24e1c899881..d1da1d0abf7c1990cd7172a028c941510759ee70 100644
--- a/remoting/host/win/unprivileged_process_delegate.h
+++ b/remoting/host/win/unprivileged_process_delegate.h
@@ -31,7 +31,7 @@ class UnprivilegedProcessDelegate : public WorkerProcessLauncher::Delegate {
   UnprivilegedProcessDelegate(
       scoped_refptr<base::SingleThreadTaskRunner> main_task_runner,
       scoped_refptr<base::SingleThreadTaskRunner> io_task_runner,
-      const FilePath& binary_path);
+      const base::FilePath& binary_path);
   virtual ~UnprivilegedProcessDelegate();
 
   // IPC::Sender implementation.
@@ -53,7 +53,7 @@ class UnprivilegedProcessDelegate : public WorkerProcessLauncher::Delegate {
   scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_;
 
   // Path to the worker process binary.
-  FilePath binary_path_;
+  base::FilePath binary_path_;
 
   // The server end of the IPC channel used to communicate to the worker
   // process.