Dead code removal: remove MetricsResponse implementation and tests

chrome/browser/metrics/metrics_response.h

-// Copyright (c) 2010 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.
-
-// This class exists to interpret the response from the metrics server.
-
-#ifndef CHROME_BROWSER_METRICS_METRICS_RESPONSE_H_
-#define CHROME_BROWSER_METRICS_METRICS_RESPONSE_H_
-
-#include <string>
-
-#include "base/basictypes.h"
-
-class MetricsResponse {
- public:
-  // Parses metrics response XML into the information we care about
-  // (how often to send metrics info, which info to send).
-  explicit MetricsResponse(const std::string& response_xml);
-
-  // True if the XML passed to the constructor was valid and parseable.
-  bool valid() { return valid_; }
-
-  // Each flag (except NONE) defined here represents one type of metrics
-  // event that the server is interested in.
-  enum CollectorType {
-    COLLECTOR_NONE = 0x0,
-    COLLECTOR_PROFILE = 0x1,
-    COLLECTOR_WINDOW = 0x2,
-    COLLECTOR_DOCUMENT = 0x4,
-    COLLECTOR_UI = 0x8
-  };
-
-  // This is the collection of CollectorTypes that are desired by the
-  // server, ORed together into one value.
-  int collectors() { return collectors_; }
-
-  // Returns true if the given CollectorType is desired by the server.
-  bool collector_active(CollectorType type) { return !!(collectors_ & type); }
-
-  // Returns the maximum number of event that the server wants in each
-  // metrics log sent.  (If 0, no value was provided.)
-  int events() { return events_; }
-
-  // Returns the size of the time interval that the server wants us to include
-  // in each log (in seconds).  (If 0, no value was provided.)
-  int interval() { return interval_; }
-
- private:
-  bool valid_;
-  int collectors_;
-  int events_;
-  int interval_;
-
-  DISALLOW_COPY_AND_ASSIGN(MetricsResponse);
-};
-
-#endif  // CHROME_BROWSER_METRICS_METRICS_RESPONSE_H_