Remove unused DataReductionProxyInfoBar and related code

chrome/browser/ui/android/infobars/data_reduction_proxy_infobar.cc

-// Copyright 2014 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/ui/android/infobars/data_reduction_proxy_infobar.h"
-
-#include <utility>
-
-#include "base/android/jni_android.h"
-#include "base/android/jni_string.h"
-#include "base/logging.h"
-#include "chrome/browser/android/resource_mapper.h"
-#include "chrome/browser/net/spdyproxy/data_reduction_proxy_infobar_delegate_android.h"
-#include "content/public/browser/web_contents.h"
-#include "jni/DataReductionProxyInfoBarDelegate_jni.h"
-
-// DataReductionProxyInfoBar:
-
-// static
-void DataReductionProxyInfoBar::Launch(
-    JNIEnv* env, jclass, jobject jweb_contents, jstring jlink_url) {
-  content::WebContents* web_contents =
-      content::WebContents::FromJavaWebContents(jweb_contents);
-  DCHECK(web_contents);
-  DataReductionProxyInfoBarDelegateAndroid::Create(
-      web_contents, base::android::ConvertJavaStringToUTF8(env, jlink_url));
-}
-
-// static
-bool DataReductionProxyInfoBar::Register(JNIEnv* env) {
-  return RegisterNativesImpl(env);
-}
-
-DataReductionProxyInfoBar::DataReductionProxyInfoBar(
-    std::unique_ptr<DataReductionProxyInfoBarDelegateAndroid> delegate)
-    : ConfirmInfoBar(std::move(delegate)),
-      java_data_reduction_proxy_delegate_() {}
-
-DataReductionProxyInfoBar::~DataReductionProxyInfoBar() {
-}
-
-base::android::ScopedJavaLocalRef<jobject>
-DataReductionProxyInfoBar::CreateRenderInfoBar(JNIEnv* env) {
-  java_data_reduction_proxy_delegate_.Reset(
-      Java_DataReductionProxyInfoBarDelegate_create(env));
-
-  return Java_DataReductionProxyInfoBarDelegate_showDataReductionProxyInfoBar(
-      env, java_data_reduction_proxy_delegate_.obj(), GetEnumeratedIconId());
-}
-
-DataReductionProxyInfoBarDelegateAndroid*
-DataReductionProxyInfoBar::GetDelegate() {
-  return static_cast<DataReductionProxyInfoBarDelegateAndroid*>(delegate());
-}
-
-// DataReductionProxyInfoBarDelegate:
-
-// static
-std::unique_ptr<infobars::InfoBar>
-DataReductionProxyInfoBarDelegateAndroid::CreateInfoBar(
-    infobars::InfoBarManager* infobar_manager,
-    std::unique_ptr<DataReductionProxyInfoBarDelegateAndroid> delegate) {
-  return std::unique_ptr<infobars::InfoBar>(
-      new DataReductionProxyInfoBar(std::move(delegate)));
-}
-
-// JNI for DataReductionProxyInfoBarDelegate.
-void Launch(JNIEnv* env,
-            const JavaParamRef<jclass>& clazz,
-            const JavaParamRef<jobject>& jweb_contents,
-            const JavaParamRef<jstring>& jlink_url) {
-  DataReductionProxyInfoBar::Launch(env, clazz, jweb_contents, jlink_url);
-}