The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/e57c73a2db2ce7fad847d8663748d387fe545390

commit e57c73a2db2ce7fad847d8663748d387fe545390
Author: tommycli <tommycli@chromium.org>
Date: Mon May 08 21:18:06 2017

PDF: Add UMA to track successful / failed PDF loads

This CL covers successful loads of the internal PDF plugin, as well as
when we show the plugin placeholder for the PDF (when user is on Android
or the plugin is disabled and there is no fallback content).

This CL does not cover the drive-by download or main-frame download
cases. Those will be in a followup CL.

BUG= 714917 

Review-Url: https://codereview.chromium.org/2852193002
Cr-Commit-Position: refs/heads/master@{#470130}

[modify] https://crrev.com/e57c73a2db2ce7fad847d8663748d387fe545390/chrome/renderer/chrome_content_renderer_client.cc
[modify] https://crrev.com/e57c73a2db2ce7fad847d8663748d387fe545390/chrome/renderer/plugins/plugin_uma.cc
[modify] https://crrev.com/e57c73a2db2ce7fad847d8663748d387fe545390/chrome/renderer/plugins/plugin_uma.h
[modify] https://crrev.com/e57c73a2db2ce7fad847d8663748d387fe545390/tools/metrics/histograms/enums.xml
[modify] https://crrev.com/e57c73a2db2ce7fad847d8663748d387fe545390/tools/metrics/histograms/histograms.xml

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/c173ef62237c56354fd42882ea0999cc5564ef1c

commit c173ef62237c56354fd42882ea0999cc5564ef1c
Author: tommycli <tommycli@chromium.org>
Date: Sat May 27 02:19:59 2017

PDF: Add UMA to track embedded PDF triggered drive-by downloads.

Adds an entry to an existing histogram to track drive-by downloads
triggered when the user views a page with an embedded PDF but has
no PDF plugin (or it's disabled).

BUG= 714917 

Review-Url: https://codereview.chromium.org/2901563003
Cr-Commit-Position: refs/heads/master@{#475220}

[modify] https://crrev.com/c173ef62237c56354fd42882ea0999cc5564ef1c/chrome/browser/download/chrome_download_manager_delegate.cc
[modify] https://crrev.com/c173ef62237c56354fd42882ea0999cc5564ef1c/chrome/common/BUILD.gn
[add] https://crrev.com/c173ef62237c56354fd42882ea0999cc5564ef1c/chrome/common/pdf_uma.cc
[add] https://crrev.com/c173ef62237c56354fd42882ea0999cc5564ef1c/chrome/common/pdf_uma.h
[modify] https://crrev.com/c173ef62237c56354fd42882ea0999cc5564ef1c/chrome/renderer/chrome_content_renderer_client.cc
[modify] https://crrev.com/c173ef62237c56354fd42882ea0999cc5564ef1c/chrome/renderer/plugins/plugin_uma.cc
[modify] https://crrev.com/c173ef62237c56354fd42882ea0999cc5564ef1c/chrome/renderer/plugins/plugin_uma.h
[modify] https://crrev.com/c173ef62237c56354fd42882ea0999cc5564ef1c/tools/metrics/histograms/enums.xml

Bouncing this bug over to amberwon@ who's working on this area.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/f56d8f43cd26e94d823f92d319bb3e653bb2d57e

commit f56d8f43cd26e94d823f92d319bb3e653bb2d57e
Author: Amber Won <amberwon@google.com>
Date: Thu Aug 31 22:29:40 2017

Add UMA to track disabled PDF iframe loads and clicks to view PDF.

Track PDF iframe loads when no PDF viewer is available and clicks to
view PDF on the PDF plugin placeholder.

Bug:  714917 

Change-Id: I97643c9a7d1eee683b98a35e0b015b62a3664050
Reviewed-on: https://chromium-review.googlesource.com/636197
Reviewed-by: Tommy Li <tommycli@chromium.org>
Reviewed-by: Steven Holte <holte@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Amber Won <amberwon@google.com>
Cr-Commit-Position: refs/heads/master@{#499050}
[modify] https://crrev.com/f56d8f43cd26e94d823f92d319bb3e653bb2d57e/chrome/browser/chrome_content_browser_client.cc
[modify] https://crrev.com/f56d8f43cd26e94d823f92d319bb3e653bb2d57e/chrome/browser/plugins/pdf_iframe_navigation_throttle.cc
[modify] https://crrev.com/f56d8f43cd26e94d823f92d319bb3e653bb2d57e/chrome/browser/plugins/pdf_iframe_navigation_throttle_unittest.cc
[modify] https://crrev.com/f56d8f43cd26e94d823f92d319bb3e653bb2d57e/chrome/common/pdf_uma.h
[modify] https://crrev.com/f56d8f43cd26e94d823f92d319bb3e653bb2d57e/chrome/renderer/plugins/pdf_plugin_placeholder.cc
[modify] https://crrev.com/f56d8f43cd26e94d823f92d319bb3e653bb2d57e/tools/metrics/histograms/enums.xml
[modify] https://crrev.com/f56d8f43cd26e94d823f92d319bb3e653bb2d57e/tools/metrics/histograms/histograms.xml

The assigned owner "amberwon@google.com" is not able to receive e-mails, please re-triage.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot