Add FilePath to base namespace.

net/base/file_stream_context.h

Index: net/base/file_stream_context.h
diff --git a/net/base/file_stream_context.h b/net/base/file_stream_context.h
index 244c25f4c40d97d5a52a73b0f4805967673cf8ad..42fc0eb573c914039b08ecb6a91b07ac6a323ca5 100644
--- a/net/base/file_stream_context.h
+++ b/net/base/file_stream_context.h
@@ -39,7 +39,9 @@
 #include <errno.h>
 #endif
 
+namespace base {
 class FilePath;
+}
 
 namespace net {
 
@@ -97,10 +99,10 @@ class FileStream::Context {
   // not closed yet.
   void Orphan();
 
-  void OpenAsync(const FilePath& path,
+  void OpenAsync(const base::FilePath& path,
                  int open_flags,
                  const CompletionCallback& callback);
-  int OpenSync(const FilePath& path, int open_flags);
+  int OpenSync(const base::FilePath& path, int open_flags);
 
   void CloseSync();
 
@@ -137,9 +139,9 @@ class FileStream::Context {
   // Map system error into network error code and log it with |bound_net_log_|.
   int RecordAndMapError(int error, FileErrorSource source) const;
 
-  void BeginOpenEvent(const FilePath& path);
+  void BeginOpenEvent(const base::FilePath& path);
 
-  OpenResult OpenFileImpl(const FilePath& path, int open_flags);
+  OpenResult OpenFileImpl(const base::FilePath& path, int open_flags);
 
   int ProcessOpenError(int error_code);
   void OnOpenCompleted(const CompletionCallback& callback, OpenResult result);