Add BlimpClientContext and factory with real and dummy implementation

chrome/browser/android/blimp/chrome_blimp_client_context_delegate.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 "chrome/browser/android/blimp/chrome_blimp_client_context_delegate.h"
+
+#include "blimp/client/public/blimp_client_context.h"
+#include "blimp/client/public/blimp_client_context_delegate.h"
+#include "blimp/client/public/blimp_contents.h"
+#include "chrome/browser/android/blimp/blimp_client_context_factory.h"
+#include "chrome/browser/android/blimp/blimp_contents_profile_attachment.h"
+#include "chrome/browser/profiles/profile.h"
+
+ChromeBlimpClientContextDelegate::ChromeBlimpClientContextDelegate(
+    Profile* profile)
+    : profile_(profile),
+      blimp_client_context_(
+          BlimpClientContextFactory::GetForBrowserContext(profile)) {
+  blimp_client_context_->SetDelegate(this);
+}
+
+ChromeBlimpClientContextDelegate::~ChromeBlimpClientContextDelegate() {
+  blimp_client_context_->SetDelegate(nullptr);
+}
+
+void ChromeBlimpClientContextDelegate::AttachBlimpContentsHelpers(
+    blimp::client::BlimpContents* blimp_contents) {
+  AttachProfileToBlimpContents(blimp_contents, profile_);
+}