Push API: Validate storage before returning cached subscriptions

components/gcm_driver/gcm_driver.cc

Index: components/gcm_driver/gcm_driver.cc
diff --git a/components/gcm_driver/gcm_driver.cc b/components/gcm_driver/gcm_driver.cc
index 21d30549d07030b043adfa405f0ab45eb6b94931..11134689bce8c79ebd19041f7a9f8e724f216498 100644
--- a/components/gcm_driver/gcm_driver.cc
+++ b/components/gcm_driver/gcm_driver.cc
@@ -16,12 +16,6 @@
 
 namespace gcm {
 
-namespace {
-
-const size_t kMaxSenders = 100;
-
-}  // namespace
-
 InstanceIDHandler::InstanceIDHandler() {
 }
 
@@ -33,6 +27,8 @@ void InstanceIDHandler::DeleteAllTokensForApp(
   DeleteToken(app_id, "*", "*", callback);
 }
 
+const size_t GCMDriver::kMaxSenders = 100;
+
 GCMDriver::GCMDriver(
     const base::FilePath& store_path,
     const scoped_refptr<base::SequencedTaskRunner>& blocking_task_runner)