Use base namespace for FilePath in content/browser

content/browser/mime_registry_message_filter.cc

Index: content/browser/mime_registry_message_filter.cc
diff --git a/content/browser/mime_registry_message_filter.cc b/content/browser/mime_registry_message_filter.cc
index e29e1fac484d12ba429025f1fd6a7a07c982e26d..49a050084c9f7cfb0c5123d326deb21a05975d93 100644
--- a/content/browser/mime_registry_message_filter.cc
+++ b/content/browser/mime_registry_message_filter.cc
@@ -38,17 +38,17 @@ bool MimeRegistryMessageFilter::OnMessageReceived(const IPC::Message& message,
 }
 
 void MimeRegistryMessageFilter::OnGetMimeTypeFromExtension(
-    const FilePath::StringType& ext, std::string* mime_type) {
+    const base::FilePath::StringType& ext, std::string* mime_type) {
   net::GetMimeTypeFromExtension(ext, mime_type);
 }
 
 void MimeRegistryMessageFilter::OnGetMimeTypeFromFile(
-    const FilePath& file_path, std::string* mime_type) {
+    const base::FilePath& file_path, std::string* mime_type) {
   net::GetMimeTypeFromFile(file_path, mime_type);
 }
 
 void MimeRegistryMessageFilter::OnGetPreferredExtensionForMimeType(
-    const std::string& mime_type, FilePath::StringType* extension) {
+    const std::string& mime_type, base::FilePath::StringType* extension) {
   net::GetPreferredExtensionForMimeType(mime_type, extension);
 }