Add UMA stats for the resolution camera is started in.

webrtc/api/android/jni/androidmetrics_jni.cc

 /*
  *  Copyright 2016 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 48 matching lines @@
   return j_metrics;
 }
 
 JOW(jlong, Metrics_00024Histogram_nativeCreateCounts)
 (JNIEnv* jni, jclass, jstring j_name, jint min, jint max, jint buckets) {
   std::string name = JavaToStdString(jni, j_name);
   return jlongFromPointer(
       webrtc::metrics::HistogramFactoryGetCounts(name, min, max, buckets));
 }
 
+JOW(jlong, Metrics_00024Histogram_nativeCreateEnumeration)
+(JNIEnv* jni, jclass, jstring j_name, jint max) {
+  std::string name = JavaToStdString(jni, j_name);
+  return jlongFromPointer(
+      webrtc::metrics::HistogramFactoryGetEnumeration(name, max));
+}
+
 JOW(void, Metrics_00024Histogram_nativeAddSample)
 (JNIEnv* jni, jclass, jlong histogram, jint sample) {
   if (histogram) {
     HistogramAdd(reinterpret_cast<webrtc::metrics::Histogram*>(histogram),
                  sample);
   }
 }
 
 }  // namespace webrtc_jni