Add AssignmentSource to BlimpClientContextImpl

blimp/client/public/blimp_client_context.h

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef BLIMP_CLIENT_PUBLIC_BLIMP_CLIENT_CONTEXT_H_
 #define BLIMP_CLIENT_PUBLIC_BLIMP_CLIENT_CONTEXT_H_
 
 #include <memory>
+#include <string>
 
 #include "base/memory/ref_counted.h"
 #include "base/single_thread_task_runner.h"
 #include "blimp/client/public/blimp_client_context_delegate.h"
 #include "blimp/client/public/contents/blimp_contents.h"
 #include "components/keyed_service/core/keyed_service.h"
 
 #if defined(OS_ANDROID)
 #include "base/android/jni_android.h"
 #endif  // defined(OS_ANDROID)
@@ skipping 15 matching lines @@
   // BlimpClientContext.
   static base::android::ScopedJavaLocalRef<jobject> GetJavaObject(
       BlimpClientContext* blimp_client_context);
 #endif  // defined(OS_ANDROID)
 
   // Creates a BlimpClientContext. The implementation of this function
   // depends on whether the core or dummy implementation of Blimp has been
   // linked in.
   // The |io_thread_task_runner| must be the task runner to use for IO
   // operations.
+  // The |file_thread_task_runner| must be the task runner to use for file
+  // operations.
   static BlimpClientContext* Create(
-      scoped_refptr<base::SingleThreadTaskRunner> io_thread_task_runner);
+      scoped_refptr<base::SingleThreadTaskRunner> io_thread_task_runner,
+      scoped_refptr<base::SingleThreadTaskRunner> file_thread_task_runner);
 
   // The delegate provides all the required functionality from the embedder.
   virtual void SetDelegate(BlimpClientContextDelegate* delegate) = 0;
 
   // Creates a new BlimpContents.
   virtual std::unique_ptr<BlimpContents> CreateBlimpContents() = 0;
 
+  // Initiates the process for connecting to the engine.
+  virtual void Connect(const std::string& client_auth_token) = 0;
+
  protected:
   BlimpClientContext() = default;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(BlimpClientContext);
 };
 
 }  // namespace client
 }  // namespace blimp
 
 #endif  // BLIMP_CLIENT_PUBLIC_BLIMP_CLIENT_CONTEXT_H_