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Unified Diff: chrome/browser/metrics/metrics_service.cc

Issue 26646003: MetricsService: Send a hash of the UMA log in a header. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src/
Patch Set: Created 7 years, 2 months ago
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Index: chrome/browser/metrics/metrics_service.cc
===================================================================
--- chrome/browser/metrics/metrics_service.cc (revision 228712)
+++ chrome/browser/metrics/metrics_service.cc (working copy)
@@ -1463,6 +1463,11 @@
current_fetch_->SetUploadData(kMimeType, compressed_log_text);
// Tell the server that we're uploading gzipped protobufs.
current_fetch_->SetExtraRequestHeaders("content-encoding: gzip");
+ const std::string hash =
+ base::HexEncode(log_manager_.staged_log_hash().data(),
+ log_manager_.staged_log_hash().size());
+ DCHECK(!hash.empty());
+ current_fetch_->AddExtraRequestHeader("X-Chrome-UMA-Log-SHA1: " + hash);
UMA_HISTOGRAM_PERCENTAGE(
"UMA.ProtoCompressionRatio",
100 * compressed_log_text.size() / log_text.size());
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