Roll src-internal from 15391ed19263 to 72c6320cdd88 (7 revisions)

https://chrome-internal.googlesource.com/chrome/src-internal.git/+log/15391ed19263..72c6320cdd88

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://skia-autoroll.corp.goog/r/src-internal-chromium-autoroll
Please CC mstensho@google.com on the revert to ensure that a human
is aware of the problem.

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Documentation for the AutoRoller is here:
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Cq-Include-Trybots: luci.chrome.try:linux-chromeos-chrome
Bug: chromium:1040645,chromium:1143402
Tbr: mstensho@google.com
Change-Id: Icca66833418c37479dcc1c667b33fb1cdce51663
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2531854Reviewed-by: chromium-internal-autoroll <chromium-internal-autoroll@skia-corp.google.com.iam.gserviceaccount.com>
Commit-Queue: chromium-internal-autoroll <chromium-internal-autoroll@skia-corp.google.com.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#826211}

DEPS

@@ -1577,7 +1577,7 @@ deps = {
     Var('chromium_git') + '/v8/v8.git' + '@' +  Var('v8_revision'),
 
   'src-internal': {
-    'url': 'https://chrome-internal.googlesource.com/chrome/src-internal.git@15391ed1926388b1f5f5cb709b8fcc59f3fde218',
+    'url': 'https://chrome-internal.googlesource.com/chrome/src-internal.git@72c6320cdd882679010b37fd0993d9658cc7885b',
     'condition': 'checkout_src_internal',
   },