roll cacheinvalidation forward to @302

Summary of changes:

- Use a random value for the token-assignment nonce instead of the current time.

- Add RandUint64 to the Random class and override.

TBR=brettw@chromium.org

Review URL: https://chromiumcodereview.appspot.com/14822002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@198756 0039d316-1c4b-4281-b951-d872f2087c98

DEPS

@@ -98,7 +98,7 @@ deps = {
 
   "src/third_party/cacheinvalidation/src":
     (Var("googlecode_url") % "google-cache-invalidation-api") +
-    "/trunk/src@298",
+    "/trunk/src@302",
 
   "src/third_party/leveldatabase/src":
     (Var("googlecode_url") % "leveldb") + "/trunk@72",

third_party/cacheinvalidation/overrides/google/cacheinvalidation/deps/random.h

@@ -20,6 +20,10 @@ class Random {
   virtual double RandDouble() {
     return base::RandDouble();
   }
+
+  virtual uint64 RandUint64() {
+    return base::RandUint64();
+  }
 };
 
 }  // namespace invalidation