Remove //chrome as an embedder of blimp.

chrome/browser/android/blimp/chrome_blimp_client_context_delegate_android.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_ANDROID_H_
-#define CHROME_BROWSER_ANDROID_BLIMP_CHROME_BLIMP_CLIENT_CONTEXT_DELEGATE_ANDROID_H_
-
-#include "base/android/jni_android.h"
-#include "base/android/scoped_java_ref.h"
-#include "base/macros.h"
-#include "chrome/browser/android/blimp/chrome_blimp_client_context_delegate.h"
-
-// Android implementation of ChromeBlimpClientContextDelegate which is partly
-// backed by Java.
-class ChromeBlimpClientContextDelegateAndroid
-    : public ChromeBlimpClientContextDelegate {
- public:
-  static bool RegisterJni(JNIEnv* env);
-
-  ChromeBlimpClientContextDelegateAndroid(JNIEnv* env,
-                                          jobject jobj,
-                                          Profile* profile);
-  ~ChromeBlimpClientContextDelegateAndroid() override;
-
-  void Destroy(JNIEnv* env, const base::android::JavaParamRef<jobject>& jobj);
-
- private:
-  // ChromeBlimpClientContextDelegate implementation.
-  void ShowMessage(const base::string16& message, bool short_message) override;
-
-  base::android::ScopedJavaGlobalRef<jobject> java_obj_;
-
-  DISALLOW_COPY_AND_ASSIGN(ChromeBlimpClientContextDelegateAndroid);
-};
-
-#endif  // CHROME_BROWSER_ANDROID_BLIMP_CHROME_BLIMP_CLIENT_CONTEXT_DELEGATE_ANDROID_H_