Move glue code of blob channel to blimp_client_context_impl.

blimp/client/core/compositor/blob_manager_unittest.cc

+// 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.
+
+#include <memory>
+
+#include "blimp/client/core/compositor/blob_image_serialization_processor.h"
+#include "blimp/client/core/compositor/blob_manager.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+using testing::_;
+
+namespace blimp {
+namespace client {
+
+class MockImageDecodeErrorDelegate
+    : public BlobImageSerializationProcessor::ErrorDelegate {
+  MOCK_METHOD0(OnImageDecodeError, void());
+};
+
+class MockBlobManager : public BlobManager {
+ public:
+  MockBlobManager() : BlobManager(&mock_delegate) {}
+  ~MockBlobManager() override {}
+
+  BlobChannelReceiver* Receiver() { return blob_receiver_.get(); }
+
+ private:
+  MockImageDecodeErrorDelegate mock_delegate;
+};
+
+class BlobManagerTest : public testing::Test {
+ public:
+  BlobManagerTest() {}
+  ~BlobManagerTest() override {}
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(BlobManagerTest);
+};
+
+TEST_F(BlobManagerTest, CheckReceiver) {
+  MockBlobManager blob_manager;
+  // BlobManager wrapper must have the receiver.
+  DCHECK(blob_manager.Receiver());
+}
+
+}  // namespace client
+}  // namespace blimp