move_blink_source.py: Add NOPRESUBMIT and NOTREECHECKS to CL descriptions.

We know these CLs won't pass presubmit checks.
We're going to land these CLs while the tree is closed.

Bug: 578345
Change-Id: I75549f683f61a1cd6cf8d5711c106bd49b32e8f7
Reviewed-on: https://chromium-review.googlesource.com/974670Reviewed-by: Quinten Yearsley <qyearsley@chromium.org>
Commit-Queue: Kent Tamura <tkent@chromium.org>
Cr-Commit-Position: refs/heads/master@{#545715}

third_party/blink/tools/move_blink_source.py

@@ -218,6 +218,8 @@ class MoveBlinkSource(object):
 Update file contents without moving files.
 
 NOAUTOREVERT=true
+NOPRESUBMIT=true
+NOTREECHECKS=true
 Bug: 768828
 """)
 
@@ -274,6 +276,8 @@ Bug: 768828
 Move and rename files.
 
 NOAUTOREVERT=true
+NOPRESUBMIT=true
+NOTREECHECKS=true
 Bug: 768828
 """)