Move FileWatcher from src/base/ to src/chrome/browser/ and switch

base/base.gypi

Index: base/base.gypi
diff --git a/base/base.gypi b/base/base.gypi
index a251641680ef684d7249d7e2894464a7a3da5229..72ce24d9a616185752ebbeacc2c4376fbba6462a 100644
--- a/base/base.gypi
+++ b/base/base.gypi
@@ -293,7 +293,6 @@
               'sources!': [
                 'atomicops_internals_x86_gcc.cc',
                 'base_paths_posix.cc',
-                'file_watcher_inotify.cc',
                 'linux_util.cc',
                 'message_pump_glib.cc',
               ],
@@ -316,17 +315,6 @@
               'sources/': [ ['exclude', '_openbsd\\.cc$'] ],
             },
           ],
-          [ 'GENERATOR == "quentin"', {
-              # Quentin builds don't have a recent enough glibc to include the
-              # inotify headers
-              'sources!': [
-                'file_watcher_inotify.cc',
-              ],
-              'sources': [
-                'file_watcher_stub.cc',
-              ],
-            },
-          ],
           [ 'OS == "mac"', {
               'sources!': [
                 # TODO(wtc): Remove nss_util.{cc,h} when http://crbug.com/30689
@@ -421,12 +409,6 @@
           ],
         },],
         [ 'OS == "freebsd" or OS == "openbsd"', {
-            'sources!': [
-              'file_watcher_inotify.cc',
-            ],
-            'sources': [
-              'file_watcher_stub.cc',
-            ],
             'link_settings': {
               'libraries': [
                 '-L/usr/local/lib -lexecinfo',
@@ -506,10 +488,6 @@
         'base_drop_target.cc',
         'base_drop_target.h',
         'data_pack.cc',
-        'file_watcher.h',
-        'file_watcher_inotify.cc',
-        'file_watcher_mac.cc',
-        'file_watcher_win.cc',
         'dynamic_annotations.h',
         'dynamic_annotations.cc',
         'event_recorder.cc',