blimp: Move BlimpCompositor to use delegated rendering.

blimp/client/test/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.
 
 source_set("test") {
   testonly = true
 
   sources = [
     "test_blimp_client_context_delegate.cc",
     "test_blimp_client_context_delegate.h",
   ]
 
   deps = [
     "//base",
+    "//base/test:test_support",
+    "//blimp/client/core",
     "//blimp/client/public:public_headers",
-    "//google_apis:google_apis",
     "//google_apis:test_support",
+    "//mojo/edk/system",
+    "//net",
+    "//ui/gfx",
   ]
 
   public_deps = [
     "//testing/gmock",
   ]
 }