Move FilePathWatcher to base/files.

base/files/file_path_watcher_browsertest.cc

Index: base/files/file_path_watcher_browsertest.cc
diff --git a/content/common/file_path_watcher/file_path_watcher_browsertest.cc b/base/files/file_path_watcher_browsertest.cc
similarity index 99%
rename from content/common/file_path_watcher/file_path_watcher_browsertest.cc
rename to base/files/file_path_watcher_browsertest.cc
index b847ca9e2901ce12ec3a108ec8bba72426ae88e5..d623c9069d8ac2c3a61aa6cabc4faefacf4aa9e9 100644
--- a/content/common/file_path_watcher/file_path_watcher_browsertest.cc
+++ b/base/files/file_path_watcher_browsertest.cc
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "content/common/file_path_watcher/file_path_watcher.h"
+#include "base/files/file_path_watcher.h"
 
 #include <set>
 
@@ -28,6 +28,9 @@
 #include "base/threading/thread.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
+namespace base {
+namespace files {
+
 namespace {
 
 class TestDelegate;
@@ -614,3 +617,6 @@ TEST_F(FilePathWatcherTest, DirAttributesChanged) {
 
 #endif  // OS_MACOSX
 }  // namespace
+
+}  // namespace files
+}  // namespace base