Move FilePathWatcher to base/files.

base/files/file_path_watcher_stub.cc

Index: base/files/file_path_watcher_stub.cc
diff --git a/content/common/file_path_watcher/file_path_watcher_stub.cc b/base/files/file_path_watcher_stub.cc
similarity index 85%
rename from content/common/file_path_watcher/file_path_watcher_stub.cc
rename to base/files/file_path_watcher_stub.cc
index 42b6ec68bcbb1a6e2f73e3b766b0ed545ab08279..840b68cb4cfb0cd9eb9875ab2acabcb8e2e98f96 100644
--- a/content/common/file_path_watcher/file_path_watcher_stub.cc
+++ b/base/files/file_path_watcher_stub.cc
@@ -5,7 +5,11 @@
 // This file exists for Unix systems which don't have the inotify headers, and
 // thus cannot build file_watcher_inotify.cc
 
-#include "chrome/common/file_path_watcher/file_path_watcher.h"
+#include "base/files/file_path_watcher.h"
+
+using ::base::files::FilePathWatcher;
+
+namespace {
 
 class FilePathWatcherImpl : public FilePathWatcher::PlatformDelegate {
  public:
@@ -16,6 +20,8 @@ class FilePathWatcherImpl : public FilePathWatcher::PlatformDelegate {
   }
 };
 
+}  // namespace
+
 FilePathWatcher::FilePathWatcher() {
   impl_ = new FilePathWatcherImpl();
 }