Use base namespace for FilePath in content/browser

content/browser/worker_host/worker_process_host.cc

Index: content/browser/worker_host/worker_process_host.cc
diff --git a/content/browser/worker_host/worker_process_host.cc b/content/browser/worker_host/worker_process_host.cc
index 03ec6ed6c98e847f135c65e57afb3e31fd9784e1..0799ee7c4be268bf076e99e46bc1a7e038465fbe 100644
--- a/content/browser/worker_host/worker_process_host.cc
+++ b/content/browser/worker_host/worker_process_host.cc
@@ -136,7 +136,7 @@ bool WorkerProcessHost::Init(int render_process_id) {
   int flags = ChildProcessHost::CHILD_NORMAL;
 #endif
 
-  FilePath exe_path = ChildProcessHost::GetChildPath(flags);
+  base::FilePath exe_path = ChildProcessHost::GetChildPath(flags);
   if (exe_path.empty())
     return false;
 
@@ -191,7 +191,7 @@ bool WorkerProcessHost::Init(int render_process_id) {
 
   process_->Launch(
 #if defined(OS_WIN)
-      FilePath(),
+      base::FilePath(),
 #elif defined(OS_POSIX)
       use_zygote,
       base::EnvironmentVector(),