)]}'
{
  "commit": "d6eb71ef2ca42e5eeaf1a1ace8ec5fb065cd1000",
  "tree": "ff690aa1625aae3ba8ec1ccffd9713a56d4cb508",
  "parents": [
    "901e0ffc331cec63ecbfd05297d3c407aadbe164"
  ],
  "author": {
    "name": "Qingsi Wang",
    "email": "qingsi@google.com",
    "time": "Tue Jun 26 19:30:04 2018"
  },
  "committer": {
    "name": "Commit Bot",
    "email": "commit-bot@chromium.org",
    "time": "Wed Jun 27 00:41:29 2018"
  },
  "message": "Use the sparse histogram in RTC_HISTOGRAM_ENUMERATION_SPARSE.\n\nA stub of sparse histogram factory getter is added so that Chromium can\nprovide an implementation using base::SparseHistogram for the metrics\nmacro RTC_HISTOGRAM_ENUMERATION_SPARSE. The default implementation in\nWebRTC reuses the non-sparse version.\n\nBug: None\nChange-Id: Ia091ca7aaacb6baa92027cd99d821bbc8da8d780\nReviewed-on: https://webrtc-review.googlesource.com/85740\nReviewed-by: Tommi \u003ctommi@webrtc.org\u003e\nCommit-Queue: Qingsi Wang \u003cqingsi@google.com\u003e\nCr-Commit-Position: refs/heads/master@{#23750}",
  "tree_diff": [
    {
      "type": "modify",
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      "old_mode": 33188,
      "old_path": "system_wrappers/include/metrics.h",
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      "new_mode": 33188,
      "new_path": "system_wrappers/include/metrics.h"
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      "old_path": "system_wrappers/source/metrics_default.cc",
      "new_id": "7b62c8103f13445e2107393c47845712c5f35df4",
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      "new_path": "system_wrappers/source/metrics_default.cc"
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}