Move glue code of blob channel to blimp_client_context_impl.

blimp/client/core/BUILD.gn

 # 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.
 
 if (is_android) {
   import("//build/config/android/config.gni")
   import("//build/config/android/rules.gni")
 }
 
 import("//blimp/client/core/config.gni")
@@ skipping 81 matching lines @@
 }
 
 source_set("context") {
   sources = [
     "blimp_client_context_impl.cc",
     "blimp_client_context_impl.h",
   ]
 
   public_deps = [
     "//base",
+    "//blimp/client/core/compositor:compositor",
     "//blimp/client/core/contents",
     "//blimp/client/core/session",
     "//blimp/client/public:public_headers",
     "//url",
   ]
 
   deps = [
     ":switches",
     "//blimp/client/core/settings",
   ]
@@ skipping 117 matching lines @@
   generate_jni("dummy_core_jni_headers") {
     visibility = [ ":*" ]
 
     sources = [
       "android/java/src/org/chromium/blimp/core/DummyBlimpClientContext.java",
     ]
 
     jni_package = "blimp/client/core"
   }
 }