Remove drive::FileSystemInterface::Initialize().

chrome/browser/chromeos/drive/drive_integration_service.cc

Index: chrome/browser/chromeos/drive/drive_integration_service.cc
diff --git a/chrome/browser/chromeos/drive/drive_integration_service.cc b/chrome/browser/chromeos/drive/drive_integration_service.cc
index 2704044bee8e542cc2cc5498ebe0a0f2f4403988..dea223b8a6d385b9aace7ef8b22f8d8574609f09 100644
--- a/chrome/browser/chromeos/drive/drive_integration_service.cc
+++ b/chrome/browser/chromeos/drive/drive_integration_service.cc
@@ -421,7 +421,6 @@ void DriveIntegrationService::Initialize() {
 
   state_ = INITIALIZING;
   drive_service_->Initialize();
-  file_system_->Initialize();
 
   base::PostTaskAndReplyWithResult(
       blocking_task_runner_.get(),
@@ -453,7 +452,7 @@ void DriveIntegrationService::InitializeAfterMetadataInitialized(
     }
 
     // Back to NOT_INITIALIZED state. Then, re-running Initialize() should
-    // work if the error is recovarable manually (such as out of disk space).
+    // work if the error is recoverable manually (such as out of disk space).
     state_ = NOT_INITIALIZED;
     return;
   }