Roll chromium_revision 626eecf..72c3265 (363027:363365)

https://chromium.googlesource.com/chromium/src/+/0c2a94ab87e6351b924a19932442e85a8f786fa0
needed the addition of tools/telemetry and third_party/catapult symlinks
for Android.
GN changes required modification of .gn.

Change log: https://chromium.googlesource.com/chromium/src/+log/626eecf..72c3265
Full diff: https://chromium.googlesource.com/chromium/src/+/626eecf..72c3265

Changed dependencies:
* src/buildtools: https://chromium.googlesource.com/chromium/buildtools.git/+log/818123d..b747a9e
* src/third_party/boringssl/src: https://boringssl.googlesource.com/boringssl.git/+log/fde89b4..6d9e5a7
DEPS diff: https://chromium.googlesource.com/chromium/src/+/626eecf..72c3265/DEPS

No update to Clang.

TBR=
NOTRY=True

Review URL: https://codereview.webrtc.org/1503883002

Cr-Commit-Position: refs/heads/master@{#10904}
diff --git a/.gn b/.gn
index d078116..4689803 100644
--- a/.gn
+++ b/.gn
@@ -35,6 +35,7 @@
   "//build/config/linux/pkg_config.gni",
   "//build/config/mac/mac_sdk.gni",
   "//build/config/posix/BUILD.gn",
+  "//build/config/sysroot.gni",
   "//build/config/win/visual_studio_version.gni",
   "//build/gn_helpers.py",
   "//build/gypi_to_gn.py",