Add BlimpClientContext and factory with real and dummy implementation

chrome/browser/android/blimp/chrome_blimp_client_context_delegate.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 CHROME_BROWSER_ANDROID_BLIMP_CHROME_BLIMP_CLIENT_CONTEXT_DELEGATE_H_
+#define CHROME_BROWSER_ANDROID_BLIMP_CHROME_BLIMP_CLIENT_CONTEXT_DELEGATE_H_
+
+#include "base/macros.h"
+#include "blimp/client/public/blimp_client_context_delegate.h"
+
+class Profile;
+
+namespace blimp {
+namespace client {
+class BlimpClientContext;
+class BlimpContents;
+}  // namespace client
+}  // namespace blimp
+
+// The BlimpClientContextDelegate for //chrome which provides the necessary
+// functionality required to run Blimp.
+class ChromeBlimpClientContextDelegate
+    : public blimp::client::BlimpClientContextDelegate {
+ public:
+  // Constructs the object and attaches it to the BlimpClientContext that is
+  // used for the given profile.
+  explicit ChromeBlimpClientContextDelegate(Profile* profile);
+  // Unattaches itself from the BlimpClientContext before going away.
+  ~ChromeBlimpClientContextDelegate() override;
+
+  // BlimpClientContextDelegate implementation.
+  void AttachBlimpContentsHelpers(
+      blimp::client::BlimpContents* blimp_contents) override;
+
+ private:
+  // The profile this delegate is used for.
+  Profile* profile_;
+
+  // The BlimpClientContext this is the delegate for.
+  blimp::client::BlimpClientContext* blimp_client_context_;
+
+  DISALLOW_COPY_AND_ASSIGN(ChromeBlimpClientContextDelegate);
+};
+
+#endif  // CHROME_BROWSER_ANDROID_BLIMP_CHROME_BLIMP_CLIENT_CONTEXT_DELEGATE_H_