Removing and deprecating PLT DataReductionProxy UMA

components/data_reduction_proxy/content/browser/data_reduction_proxy_message_filter.cc

Index: components/data_reduction_proxy/content/browser/data_reduction_proxy_message_filter.cc
diff --git a/components/data_reduction_proxy/content/browser/data_reduction_proxy_message_filter.cc b/components/data_reduction_proxy/content/browser/data_reduction_proxy_message_filter.cc
deleted file mode 100644
index a804d4171200c9cfc123eb56ea42a61945c992f0..0000000000000000000000000000000000000000
--- a/components/data_reduction_proxy/content/browser/data_reduction_proxy_message_filter.cc
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright 2015 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 "components/data_reduction_proxy/content/browser/data_reduction_proxy_message_filter.h"
-
-#include "components/data_reduction_proxy/content/common/data_reduction_proxy_messages.h"
-#include "components/data_reduction_proxy/core/browser/data_reduction_proxy_config.h"
-#include "components/data_reduction_proxy/core/browser/data_reduction_proxy_settings.h"
-#include "content/public/browser/browser_thread.h"
-#include "ipc/ipc_message_macros.h"
-#include "net/base/host_port_pair.h"
-
-namespace data_reduction_proxy {
-
-DataReductionProxyMessageFilter::DataReductionProxyMessageFilter(
-    DataReductionProxySettings* settings)
-    : BrowserMessageFilter(DataReductionProxyStart),
-      config_(nullptr) {
-  if (settings)
-    config_ = settings->Config();
-}
-
-DataReductionProxyMessageFilter::~DataReductionProxyMessageFilter() {
-}
-
-bool DataReductionProxyMessageFilter::OnMessageReceived(
-    const IPC::Message& message) {
-  bool handled = true;
-  IPC_BEGIN_MESSAGE_MAP(DataReductionProxyMessageFilter, message)
-    IPC_MESSAGE_HANDLER(DataReductionProxyViewHostMsg_IsDataReductionProxy,
-                        OnIsDataReductionProxy)
-    IPC_MESSAGE_UNHANDLED(handled = false)
-  IPC_END_MESSAGE_MAP()
-  return handled;
-}
-
-void DataReductionProxyMessageFilter::OverrideThreadForMessage(
-    const IPC::Message& message, content::BrowserThread::ID* thread) {
-  if (message.type() ==
-      DataReductionProxyViewHostMsg_IsDataReductionProxy::ID) {
-      *thread = content::BrowserThread::IO;
-  }
-}
-
-void DataReductionProxyMessageFilter::OnIsDataReductionProxy(
-    const net::HostPortPair& proxy_server,
-    bool* is_data_reduction_proxy) {
-  *is_data_reduction_proxy = false;
-  if (!config_)
-    return;
-  *is_data_reduction_proxy =
-      config_->IsDataReductionProxy(proxy_server, nullptr);
-}
-
-}  // namespace data_reduction_proxy