Remove the DeferredInitializationRunner for MemoryMonitor

ios/chrome/app/main_controller.mm

Index: ios/chrome/app/main_controller.mm
diff --git a/ios/chrome/app/main_controller.mm b/ios/chrome/app/main_controller.mm
index 86e67ba58b16b6633835ad0a6240be1d6d989e03..523334ce6bbc731379baccac4b67af6d3134ea26 100644
--- a/ios/chrome/app/main_controller.mm
+++ b/ios/chrome/app/main_controller.mm
@@ -1167,16 +1167,8 @@ enum class StackViewDismissalMode { NONE, NORMAL, INCOGNITO };
 }
 
 - (void)scheduleFreeMemoryMonitoring {

[marq (ping after 24h), 2017/03/16 13:40:58]

Maybe this shouldn't be a schedule.. task and instead should be just be in one
of the main startup methods?

[gambard, 2017/03/17 08:57:46]

Done.

-  // TODO(crbug.com/649338): See if this method cannot call PostBlockingPoolTask
-  // directly instead of enqueueing a block.
-  [[DeferredInitializationRunner sharedInstance]
-      enqueueBlockNamed:kMemoryMonitoring
-                  block:^{
-                    web::WebThread::PostBlockingPoolTask(
-                        FROM_HERE,
-                        base::Bind(
-                            &ios_internal::AsynchronousFreeMemoryMonitor));
-                  }];
+  web::WebThread::PostBlockingPoolTask(
+      FROM_HERE, base::Bind(&ios_internal::AsynchronousFreeMemoryMonitor));
 }
 
 - (void)scheduleLowPriorityStartupTasks {