Move glue code of blob channel to blimp_client_context_impl.

blimp/client/core/blimp_client_context_impl.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_CORE_BLIMP_CLIENT_CONTEXT_IMPL_H_
 #define BLIMP_CLIENT_CORE_BLIMP_CLIENT_CONTEXT_IMPL_H_
 
 #include <memory>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "base/single_thread_task_runner.h"
 #include "base/threading/thread.h"
+#include "blimp/client/core/compositor/blob_image_serialization_processor.h"
 #include "blimp/client/core/session/client_network_components.h"
 #include "blimp/client/core/session/identity_source.h"
 #include "blimp/client/core/session/network_event_observer.h"
 #include "blimp/client/public/blimp_client_context.h"
 #include "blimp/client/public/contents/blimp_contents.h"
 #include "blimp/client/public/session/assignment.h"
 #include "blimp/net/thread_pipe_manager.h"
 #include "url/gurl.h"
 
 namespace blimp {
+
+class HeliumBlobReceiverDelegate;
+
 namespace client {
 
 class BlimpContentsManager;
 class ImeFeature;
 class NavigationFeature;
 class TabControlFeature;
 
 // BlimpClientContextImpl is the implementation of the main context-class for
 // the blimp client.
-class BlimpClientContextImpl : public BlimpClientContext,
-                               public NetworkEventObserver {
+class BlimpClientContextImpl
+    : public BlimpClientContext,
+      public BlobImageSerializationProcessor::ErrorDelegate,
+      public NetworkEventObserver {
  public:
+  // Set ImageGenerator factory for Skia, can also be called by
+  // blimp_startup.cc in blimp/client/app.
+  static void SetImageGeneratorFromEncodedFactory();
+
   // 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.
   BlimpClientContextImpl(
       scoped_refptr<base::SingleThreadTaskRunner> io_thread_task_runner,
       scoped_refptr<base::SingleThreadTaskRunner> file_thread_task_runner);
   ~BlimpClientContextImpl() override;
 
   IdentitySource* GetIdentitySource();
@@ skipping 25 matching lines @@
   // Connect to assignment source with OAuth2 token to get an assignment.
   virtual void ConnectToAssignmentSource(const std::string& client_auth_token);
 
   // The AssignmentCallback for when an assignment is ready. This will trigger
   // a connection to the engine.
   virtual void ConnectWithAssignment(AssignmentRequestResult result,
                                      const Assignment& assignment);
 
   void RegisterFeatures();
 
+  // Setup blob channel.

[David Trainor- moved to gerrit, 2016/08/31 05:40:57]

I do this a lot too, but maybe just remove this comment or elaborate a bit :).

[xingliu, 2016/09/01 02:08:10]

Done.

+  void SetupBlobChannel();
+
+  // BlobImageSerializationProcessor::ErrorDelegate implementation.
+  void OnImageDecodeError() override;
+
   // Provides functionality from the embedder.
   BlimpClientContextDelegate* delegate_ = nullptr;
 
   // The task runner to use for IO operations.
   scoped_refptr<base::SingleThreadTaskRunner> io_thread_task_runner_;
 
   // The task runner to use for file operations.
   scoped_refptr<base::SingleThreadTaskRunner> file_thread_task_runner_;
 
   // The AssignmentSource is used when the user of BlimpClientContextImpl calls
   // Connect() to get a valid assignment and later connect to the engine.
   std::unique_ptr<AssignmentSource> assignment_source_;
 
   // Features to handle all incoming and outgoing protobuf messages.
   std::unique_ptr<ImeFeature> ime_feature_;
   std::unique_ptr<NavigationFeature> navigation_feature_;
   std::unique_ptr<TabControlFeature> tab_control_feature_;
 
   std::unique_ptr<BlimpContentsManager> blimp_contents_manager_;
 
   // Container struct for network components.
   // Must be deleted on the IO thread.
   std::unique_ptr<ClientNetworkComponents> net_components_;
 
   std::unique_ptr<ThreadPipeManager> thread_pipe_manager_;
 
+  // Receives blob BlimpMessages and relays them to BlobChannelReceiver.
+  // Owned by BlobChannelReceiver, therefore stored as a raw pointer here.
+  HeliumBlobReceiverDelegate* blob_delegate_ = nullptr;
+
+  // Retrieves and decodes image data from |blob_receiver_|. Must outlive
+  // |blob_receiver_|.
+  BlobImageSerializationProcessor blob_image_processor_;
+
+  std::unique_ptr<BlobChannelReceiver> blob_receiver_;
+
   base::WeakPtrFactory<BlimpClientContextImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(BlimpClientContextImpl);
 };
 
 }  // namespace client
 }  // namespace blimp
 
 #endif  // BLIMP_CLIENT_CORE_BLIMP_CLIENT_CONTEXT_IMPL_H_