[SystemInfo API] Rewrite storage info provider using storage monitor impl

chrome/common/extensions/api/experimental_system_info_storage.idl

Index: chrome/common/extensions/api/experimental_system_info_storage.idl
diff --git a/chrome/common/extensions/api/experimental_system_info_storage.idl b/chrome/common/extensions/api/experimental_system_info_storage.idl
index 2c8cc940d097c2e83dcecbb5ba23756dd69d1e25..8ad645a3b253993bded698eb751bc12f9b3eaa1b 100644
--- a/chrome/common/extensions/api/experimental_system_info_storage.idl
+++ b/chrome/common/extensions/api/experimental_system_info_storage.idl
@@ -14,9 +14,20 @@ namespace experimental.systemInfo.storage {
   };
 
   dictionary StorageUnitInfo {
-    // The unique id of the storage unit.
+    // The unique storage id. It is persistent between storage attachments.

[Lei Zhang, 2013/05/28 08:08:07]

Have you talked to anyone on the extensions team about changing the API?

[Hongbo Min, 2013/05/28 14:24:01]

Not yet. Do you know who is the owner of extensions team?

[Lei Zhang, 2013/05/28 21:16:44]

I'd talk to mpcomplete@ or yoz@.

     DOMString id;
-    // The media type of the storage unit.
+    // Human readable storage unit name.
+    DOMString name;
+    // The mount path of the storage unit. 
+    DOMString location;
+    // Human readable vendor name for the storage unit. May be empty if not
+    // collected.
+    DOMString vendorName;
+    // Human readable model name for the storage unit. May be empty if not
+    // collected.
+    DOMString modelName;
+    // The type of storage device. The value is one of the constants defined
+    // for this type.
     StorageUnitType type;
     // The total amount of the storage space, in bytes.
     double capacity;
@@ -27,8 +38,10 @@ namespace experimental.systemInfo.storage {
   dictionary StorageChangeInfo {
     // The uniue id of the storage unit already changed.
     DOMString id;
+    // The old value of the available capacity.
+    double oldValue;
     // The new value of the available capacity.
-    double availableCapacity;
+    double newValue;
   };
 
   callback StorageInfoCallback = void (StorageUnitInfo[] info);