valih@, can you please provide more information on how to reproduce the issue so that we can try it at our end to confirm the issue ?

Sounds like repro steps are:
- Make a timeline recording
- Go to a CSS file in sources to see rendered CSS coverage decorations
- Pretty print the CSS file
- Observe that the coverage decorations have shifted are no longer in the correct positions

Reassigning owner since @caseq works closest with valih@.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/354cd6c5a2e6b2a8423816eecada2aeeb5a1a41c

commit 354cd6c5a2e6b2a8423816eecada2aeeb5a1a41c
Author: valih <valih@google.com>
Date: Fri Nov 18 19:58:25 2016

Devtools: The css coverage decorations are now getting adjusted after the source is formatted by the pretty print.

BUG= 664650 

Review-Url: https://codereview.chromium.org/2492343002
Cr-Commit-Position: refs/heads/master@{#433271}

[add] https://crrev.com/354cd6c5a2e6b2a8423816eecada2aeeb5a1a41c/third_party/WebKit/LayoutTests/inspector/tracing/decorations-after-inplace-formatter-expected.txt
[add] https://crrev.com/354cd6c5a2e6b2a8423816eecada2aeeb5a1a41c/third_party/WebKit/LayoutTests/inspector/tracing/decorations-after-inplace-formatter.html
[add] https://crrev.com/354cd6c5a2e6b2a8423816eecada2aeeb5a1a41c/third_party/WebKit/LayoutTests/inspector/tracing/resources/decorations-after-inplace-formatter.css
[modify] https://crrev.com/354cd6c5a2e6b2a8423816eecada2aeeb5a1a41c/third_party/WebKit/Source/devtools/front_end/components_lazy/CoverageProfile.js
[modify] https://crrev.com/354cd6c5a2e6b2a8423816eecada2aeeb5a1a41c/third_party/WebKit/Source/devtools/front_end/components_lazy/LineLevelProfile.js
[modify] https://crrev.com/354cd6c5a2e6b2a8423816eecada2aeeb5a1a41c/third_party/WebKit/Source/devtools/front_end/sources/InplaceFormatterEditorAction.js
[modify] https://crrev.com/354cd6c5a2e6b2a8423816eecada2aeeb5a1a41c/third_party/WebKit/Source/devtools/front_end/timeline/TimelineController.js
[modify] https://crrev.com/354cd6c5a2e6b2a8423816eecada2aeeb5a1a41c/third_party/WebKit/Source/devtools/front_end/workspace/UISourceCode.js