Blob support for IDB [Blink]

LayoutTests/storage/indexeddb/keypath-intrinsic-properties-expected.txt

 Test IndexedDB keyPath with intrinsic properties
 
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
 
 
 indexedDB = self.indexedDB || self.webkitIndexedDB || self.mozIndexedDB || self.msIndexedDB || self.OIndexedDB;
 
 dbname = "keypath-intrinsic-properties.html"
 indexedDB.deleteDatabase(dbname)
 indexedDB.open(dbname)
 store = db.createObjectStore('store', {keyPath: 'id'})
 store.createIndex('string length', 'string.length')
 store.createIndex('array length', 'array.length')
+store.createIndex('blob size', 'blob.size')
 
 testKeyPaths():
 transaction = db.transaction('store', 'readwrite')
 store = transaction.objectStore('store')
-store.put({"id":"id#0","string":"","array":[]})
-store.put({"id":"id#1","string":"xx","array":["x","x","x"]})
-store.put({"id":"id#2","string":"xxxx","array":["x","x","x","x","x","x"]})
-store.put({"id":"id#3","string":"xxxxxx","array":["x","x","x","x","x","x","x","x","x"]})
-store.put({"id":"id#4","string":"xxxxxxxx","array":["x","x","x","x","x","x","x","x","x","x","x","x"]})
+store.put({"id":"id#0","string":"","array":[],"blob":{"type":"","size":0}})
+store.put({"id":"id#1","string":"xx","array":["x","x","x"],"blob":{"type":"","size":4}})
+store.put({"id":"id#2","string":"xxxx","array":["x","x","x","x","x","x"],"blob":{"type":"","size":8}})
+store.put({"id":"id#3","string":"xxxxxx","array":["x","x","x","x","x","x","x","x","x"],"blob":{"type":"","size":12}})
+store.put({"id":"id#4","string":"xxxxxxxx","array":["x","x","x","x","x","x","x","x","x","x","x","x"],"blob":{"type":"","size":16}})
 request = store.index('string length').openCursor()
 PASS cursor.key is cursor.value.string.length
 PASS cursor.key is cursor.value.string.length
 PASS cursor.key is cursor.value.string.length
 PASS cursor.key is cursor.value.string.length
 PASS cursor.key is cursor.value.string.length
 request = store.index('array length').openCursor()
 PASS cursor.key is cursor.value.array.length
 PASS cursor.key is cursor.value.array.length
 PASS cursor.key is cursor.value.array.length
 PASS cursor.key is cursor.value.array.length
 PASS cursor.key is cursor.value.array.length
+request = store.index('blob size').openCursor()
+PASS cursor.key is cursor.value.blob.size
+PASS cursor.key is cursor.value.blob.size
+PASS cursor.key is cursor.value.blob.size
+PASS cursor.key is cursor.value.blob.size
+PASS cursor.key is cursor.value.blob.size
 PASS successfullyParsed is true
 
 TEST COMPLETE