Roll v8/ 9cf8abb7c..ff6b34b46 (689 commits)

https://chromium.googlesource.com/v8/v8.git/+log/9cf8abb7ce7e..ff6b34b468c1

This updates V8 to 6.8.44.

There has been changes to how JS handles timezones. [1] Update the test
expectations to match the new behavior, even though it deviates from
Acrobat, which still has the old behavior.

BUG=pdfium:1075

[1] https://github.com/tc39/ecma262/pull/778

Change-Id: I63f0df9cd423ceee5b8d1008ba12a47ca84bbd6d
Reviewed-on: https://pdfium-review.googlesource.com/41450
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
diff --git a/DEPS b/DEPS
index 2b3912f..eabfcb0 100644
--- a/DEPS
+++ b/DEPS
@@ -33,7 +33,7 @@
   'skia_revision': '588f879677d4f36e16a42dd96876534f104c2e2f',
   'tools_memory_revision': 'f7b00daf4df7f6c469f5fbc68d7f40f6bd15d6e6',
   'trace_event_revision': '211b3ed9d0481b4caddbee1322321b86a483ca1f',
-  'v8_revision': '9cf8abb7ce7e3a3152fb71d0e87678e64f7ab0c8',
+  'v8_revision': 'ff6b34b468c1eae8589b278923f87e2f573bc248',
   'yasm_source_revision': '720b70524a4424b15fc57e82263568c8ba0496ad',
   'zlib_revision': 'dcf1d0f8c952f76cfceefb4ba61e004f93ad7287',
 }
diff --git a/testing/resources/javascript/util_printd_expected.txt b/testing/resources/javascript/util_printd_expected.txt
index 76ede71..2f077fc 100644
--- a/testing/resources/javascript/util_printd_expected.txt
+++ b/testing/resources/javascript/util_printd_expected.txt
@@ -26,7 +26,7 @@
 Alert: %z %d %%z %%d %%%z %%%d %%% hh:MM: z 4 z 4 z 4  03:59
 Alert: : 
 Alert: mm/dd/yyyy: 07/04/2014
-Alert: mm/dd/yyyy: 01/01/1850
+Alert: mm/dd/yyyy: 12/31/1849
 Alert: mm/dd/yyyy: 12/31/2525
 Alert: mm/dd/yyyy: Caught error: util.printd: The second parameter can't be converted to a Date.
 Alert: undefined: Caught error: util.printd: The second parameter can't be converted to a Date.
@@ -38,7 +38,7 @@
 Alert: clams,3: Caught error: util.printd: Incorrect parameter type.
 Alert: mm: 07
 Alert: mm: Caught error: util.printd: Operation not supported.
-Alert: mm/dd/yyyy HH:MM:ss: 07/03/1900 14:59:58
+Alert: mm/dd/yyyy HH:MM:ss: 07/03/1900 15:59:58
 Alert: mm/dd/yyyy HH:MM:ss: 09/04/2015 15:59:58
 Alert: mm/dd/yyyy HH:MM:ss: 12/09/2015 15:59:58
 Alert: mm/dd/yyyy HH:MM:ss: 07/06/2014 02:59:58