Add explicit base to FilePath.

content/test/test_content_client.cc

Index: content/test/test_content_client.cc
diff --git a/content/test/test_content_client.cc b/content/test/test_content_client.cc
index b111de4b546c0621e541325cc18f2670d25a53bf..4b0f72a8c0440a4da6ff6a59105a878e19ad99f0 100644
--- a/content/test/test_content_client.cc
+++ b/content/test/test_content_client.cc
@@ -16,7 +16,7 @@ TestContentClient::TestContentClient()
     : data_pack_(ui::SCALE_FACTOR_100P) {
   // content_resources.pak is not built on iOS as it is not required.
 #if !defined(OS_IOS)
-  FilePath content_resources_pack_path;
+  base::FilePath content_resources_pack_path;
 #if defined(OS_ANDROID)
   // on Android all pak files are inside the paks folder.
   PathService::Get(base::DIR_ANDROID_APP_DATA, &content_resources_pack_path);