[fsp] Separate recursive and non-recursive watchers.

chrome/common/extensions/api/file_system_provider.idl

Index: chrome/common/extensions/api/file_system_provider.idl
diff --git a/chrome/common/extensions/api/file_system_provider.idl b/chrome/common/extensions/api/file_system_provider.idl
index d0de7658e8d9f297c3f49d2477d59b22817b7d40..4a07cdc606b4c37e10bb8afdb346d22dde2ad80e 100644
--- a/chrome/common/extensions/api/file_system_provider.idl
+++ b/chrome/common/extensions/api/file_system_provider.idl
@@ -344,8 +344,8 @@ namespace fileSystemProvider {
   };
 
   // Information about a change happened to an entry within the observed
-  // directory.
-  dictionary ChildChange {
+  // directory (including the entry itself).
+  dictionary Change {
     // The path of the changed entry.
     DOMString entryPath;
 
@@ -361,13 +361,17 @@ namespace fileSystemProvider {
     // The path of the observed entry.
     DOMString observedPath;

[hirono, 2014/10/24 04:34:54]

Now we cannot identify an observer by using observedPath.
How about introducing ID for observer?

[mtomasz, 2014/10/24 05:37:50]

Right. I'd like to do it separately, after committing this one, and 642023003,
though.

 
+    // Mode of the observed entry.
+    boolean recursive;
+
     // The type of the change which happened to the observed entry. If it is
     // DELETED, then the observed entry will be automatically removed from the
     // list of observed entries.
     ChangeType changeType;
 
-    // List of changes to entries within the observed directory.
-    ChildChange[]? childChanges;
+    // List of changes to entries within the observed directory (including the
+    // entry itself)
+    Change[]? changes;
 
     // Tag for the notification. Required if the file system was mounted with
     // the <code>supportsNotifyTag</code> option. Note, that this flag is