Replace FilePath with base::FilePath.

content/public/test/browser_test_base.cc

Index: content/public/test/browser_test_base.cc
diff --git a/content/public/test/browser_test_base.cc b/content/public/test/browser_test_base.cc
index d0b83cd090dbd503042b8ed19f7a835cd297dc2b..04d6ff0d19ef4ece298c870e33346041343527cb 100644
--- a/content/public/test/browser_test_base.cc
+++ b/content/public/test/browser_test_base.cc
@@ -112,7 +112,7 @@ void BrowserTestBase::ProxyRunTestOnMainThreadLoop() {
   RunTestOnMainThreadLoop();
 }
 
-void BrowserTestBase::CreateTestServer(const FilePath& test_server_base) {
+void BrowserTestBase::CreateTestServer(const base::FilePath& test_server_base) {
   CHECK(!test_server_.get());
   test_server_.reset(new net::TestServer(
       net::TestServer::TYPE_HTTP,