Blimp: Add BlobChannel Helium messages and delegate impls.

blimp/common/proto/blimp_message.proto

 // Copyright 2015 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.
 //
 // Contains the BlimpMessage proto which frames all messages sent over Blimp
 // subchannels. BlimpMessage protos are serialized and transmitted over the
 // wire to the Blimplet server.
 //
 // Each BlimpMessage has a few identifying fields which provide the browser
 // session and tab ID as context. The message details are stored in a
 // feature-specific field (see field IDs 1000 and onward).
 // The |type| field tells the receiving end how the BlimpMessage should
 // be unpacked and which component it should be routed to.
 //
 // CONVENTIONS:
 // * A BlimpMessage can contain only one feature message.
 // * Feature message protos are placed in their own files.
 // * Features are applied to unidirectional channels. Client->server and
 //   server->client channels for a component should be broken out as distinct
 //   features, even if they are conceptually similar.
 
 syntax = "proto2";
 
 option optimize_for = LITE_RUNTIME;
 
+import "blob_channel.proto";
 import "compositor.proto";
 import "ime.proto";
 import "input.proto";
 import "navigation.proto";
 import "render_widget.proto";
 import "protocol_control.proto";
 import "settings.proto";
 import "tab_control.proto";
 
 package blimp;
@@ skipping 18 matching lines @@
   // Feature-specific messages follow.
   oneof feature {
     TabControlMessage tab_control = 40;
     NavigationMessage navigation = 41;
     RenderWidgetMessage render_widget = 42;
     InputMessage input = 43;
     CompositorMessage compositor = 44;
     ProtocolControlMessage protocol_control = 45;
     ImeMessage ime = 46;
     SettingsMessage settings = 47;
+    BlobChannelMessage blob_channel = 48;
   }
 }