The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/8376a0c3554ffb329e74e899f4277f7a80b52448

commit 8376a0c3554ffb329e74e899f4277f7a80b52448
Author: alph <alph@chromium.org>
Date: Fri Feb 17 17:11:47 2017

DevTools: Add icons to performance pane tabs.

BUG= 693238 

Review-Url: https://codereview.chromium.org/2689213012
Cr-Commit-Position: refs/heads/master@{#451321}

[modify] https://crrev.com/8376a0c3554ffb329e74e899f4277f7a80b52448/third_party/WebKit/Source/devtools/front_end/Images/src/optimize_png.hashes
[modify] https://crrev.com/8376a0c3554ffb329e74e899f4277f7a80b52448/third_party/WebKit/Source/devtools/front_end/Images/src/svg2png.hashes
[modify] https://crrev.com/8376a0c3554ffb329e74e899f4277f7a80b52448/third_party/WebKit/Source/devtools/front_end/Images/src/toolbarButtonGlyphs.svg
[modify] https://crrev.com/8376a0c3554ffb329e74e899f4277f7a80b52448/third_party/WebKit/Source/devtools/front_end/Images/toolbarButtonGlyphs.png
[modify] https://crrev.com/8376a0c3554ffb329e74e899f4277f7a80b52448/third_party/WebKit/Source/devtools/front_end/Images/toolbarButtonGlyphs_2x.png
[modify] https://crrev.com/8376a0c3554ffb329e74e899f4277f7a80b52448/third_party/WebKit/Source/devtools/front_end/timeline/TimelinePanel.js
[modify] https://crrev.com/8376a0c3554ffb329e74e899f4277f7a80b52448/third_party/WebKit/Source/devtools/front_end/ui/Icon.js
[modify] https://crrev.com/8376a0c3554ffb329e74e899f4277f7a80b52448/third_party/WebKit/Source/devtools/front_end/ui/inspectorCommon.css

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/ef6b4af47205610ad1b96c0da151e7d68881826e

commit ef6b4af47205610ad1b96c0da151e7d68881826e
Author: alph <alph@chromium.org>
Date: Fri Feb 24 04:42:11 2017

Revert of DevTools: Add icons to performance pane tabs. (patchset #1 id:1 of https://codereview.chromium.org/2689213012/ )

Reason for revert:
Per UX folks request

Original issue's description:
> DevTools: Add icons to performance pane tabs.
>
> BUG= 693238 
>
> Review-Url: https://codereview.chromium.org/2689213012
> Cr-Commit-Position: refs/heads/master@{#451321}
> Committed: https://chromium.googlesource.com/chromium/src/+/8376a0c3554ffb329e74e899f4277f7a80b52448

TBR=paulirish@chromium.org,caseq@chromium.org,kozyatinskiy@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG= 693238 

Review-Url: https://codereview.chromium.org/2714923002
Cr-Commit-Position: refs/heads/master@{#452752}

[modify] https://crrev.com/ef6b4af47205610ad1b96c0da151e7d68881826e/third_party/WebKit/Source/devtools/front_end/Images/src/optimize_png.hashes
[modify] https://crrev.com/ef6b4af47205610ad1b96c0da151e7d68881826e/third_party/WebKit/Source/devtools/front_end/Images/src/svg2png.hashes
[modify] https://crrev.com/ef6b4af47205610ad1b96c0da151e7d68881826e/third_party/WebKit/Source/devtools/front_end/Images/src/toolbarButtonGlyphs.svg
[modify] https://crrev.com/ef6b4af47205610ad1b96c0da151e7d68881826e/third_party/WebKit/Source/devtools/front_end/Images/toolbarButtonGlyphs.png
[modify] https://crrev.com/ef6b4af47205610ad1b96c0da151e7d68881826e/third_party/WebKit/Source/devtools/front_end/Images/toolbarButtonGlyphs_2x.png
[modify] https://crrev.com/ef6b4af47205610ad1b96c0da151e7d68881826e/third_party/WebKit/Source/devtools/front_end/timeline/TimelinePanel.js
[modify] https://crrev.com/ef6b4af47205610ad1b96c0da151e7d68881826e/third_party/WebKit/Source/devtools/front_end/ui/Icon.js
[modify] https://crrev.com/ef6b4af47205610ad1b96c0da151e7d68881826e/third_party/WebKit/Source/devtools/front_end/ui/inspectorCommon.css