Enable file path watcher for Android

base/files/file_path_watcher_linux.cc

Index: base/files/file_path_watcher_linux.cc
diff --git a/base/files/file_path_watcher_linux.cc b/base/files/file_path_watcher_linux.cc
index 205a3eb779fbff1127a5c71657d86fa05130447a..93930f688c6b97a734cb696366823c0a1d6fed92 100644
--- a/base/files/file_path_watcher_linux.cc
+++ b/base/files/file_path_watcher_linux.cc
@@ -373,8 +373,8 @@ bool FilePathWatcherImpl::Watch(const FilePath& path,
   std::vector<FilePath::StringType> comps;
   target_.GetComponents(&comps);
   DCHECK(!comps.empty());
-  for (std::vector<FilePath::StringType>::const_iterator comp(++comps.begin());
-       comp != comps.end(); ++comp) {
+  std::vector<FilePath::StringType>::const_iterator comp = comps.begin();
+  for (comp++; comp != comps.end(); comp++) {

[Mattias Nissler (ping if slow), 2012/08/27 12:53:02]

Style guide says to use preincrement:
http://google-styleguide.googlecode.com/svn/trunk/cppguide.xml?showone=Preinc...

Also, you no longer need braces, as the loop body is only a single line now.

     watches_.push_back(WatchEntry(InotifyReader::kInvalidWatch, *comp));
   }
   watches_.push_back(WatchEntry(InotifyReader::kInvalidWatch,