PlzNavigate: Add metrics to understand bf navigations PLT regression

Desktop / Chromium - clamy [chromium.org] - 14 June 2017 12:30 EDT

This CL adds several metrics to investigate why back-forward navigations are taking longer when PlzNavigate is enabled.

BUG=705559 CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_site_isolation

Review-Url: https://codereview.chromium.org/2930353005 Cr-Commit-Position: refs/heads/master@{#479414}

0625ad3 PlzNavigate: Add metrics to understand bf navigations PLT regression
.../browser/frame_host/navigation_handle_impl.cc | 20 ++++++++++
.../browser/frame_host/navigation_handle_impl.h | 3 ++
.../loader/resource_dispatcher_host_impl.cc | 44 ++++++++++++++++++++++
content/browser/loader/resource_loader.cc | 10 +++++
tools/metrics/histograms/enums.xml | 18 +++++++++
tools/metrics/histograms/histograms.xml | 36 ++++++++++++++++++
6 files changed, 131 insertions(+)

Upstream: git.chromium.org


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