Revert "Update PWA frame color to match HTML theme-color meta tag"

This reverts commit ea67b57d05efdf10e6aadae6776cc0f428d0991a.

Reason for revert:

Findit ( identified CL at revision 639842 as the
culprit for flakes in the build cycles as shown on:

Sample Failed Build:

Sample Failed Step: browser_tests on (none) GPU on Mac

Sample Flaky Test: BrowserNonClientFrameViewBrowserTest.HTMLMetaThemeColorOverridesManifest

Original change's description:
> Update PWA frame color to match HTML theme-color meta tag
> This CL updates PWA windows to use the HTML theme-color meta tag
> as the frame color over the manifest's theme_color.
> This is in line with the Web App Manifest spec text:
> Before:
> After:
> Bug: 872121
> Change-Id: Ib431f7b7612c5167cde2489f0263240747d8d50d
> Reviewed-on:
> Commit-Queue: Alan Cutter <>
> Reviewed-by: Camille Lamy <>
> Reviewed-by: Peter Kasting <>
> Auto-Submit: Alan Cutter <>
> Cr-Commit-Position: refs/heads/master@{#639842}

Change-Id: I534ff44a84967d528ecd5b8b6f24622d9fb51ea7
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 872121
Cr-Commit-Position: refs/heads/master@{#639878}
14 files changed