* build: update-external-binaries fetches sccache
* build: add util.add_exec_bit in scripts/
* build: use util.add_exec_bit in create-dist
* build: use util.add_exec_bit in update-external-binaries
this is needed to work around a bug in python's zipfile module that doesn't preserve the exec bit
https://bugs.python.org/issue18262
* fix: linting errors
* build: vsts, circleci use patched sccache
* build: always look for the x64 sccache
as it's the only arch we have it on
* fix: windows-specific errors in updaste-external-binaries
* fix: tyop
* fix: set SCCACHE_BUCKET, SCCACHE_TWO_TIER on circleci
* fix: syntax error in circleci yaml
* fix: keep churning
* chore: add tracer to file downloader
* docs: add sccache instructions for GN builds
* build: pull down the darwin sccache on mas builds
* build: use gn sync verbosely on circleci and vsts
* docs: copyediting
* build: remove unnecessary cache-dir arg
* docs: fix shell quoting in gn build instructions
* fix: invoke gclient without -verbose in circleci
* refactor: remove debug tracer
* fix: invoke gclient without -verbose in appveyor
* fix: invoke gclient without -verbose in vsts
* fix: pull add_exec_bit from correct source
* fix: remove 'SCCACHE_TWO_TIER' from CI scripts
* refactor: remove SCCACHE_BUCKET from ci scripts
this environment variable will be set via the CI UI instead
* refactor: clarify log message
* fix: set SCCACHE_PATH correctly for Windows CI
* build: [gn] add distributable zip target
* build: update the CircleCI config
- enable debug and testing builds on Mac
- run Mac release builds nightly
- run test for Mac release builds
- use shared build machines configs
* Add resources dir to zip on non mac platforms.
* fix: re-enable osr
* fix: add changes from CEF to add MouseWheelPhaseHandler
* fix: re-enable surface synchronization by applying fix from cef
* update method call and enable AsyncWheelEvents var
* fix: make BrowserCompositorMacGetGutterColor behave like chromium
* fix: HANDLE only exists on windows
* fix: pass correct params to mouse_wheel_phase_handler_
* fix variable accessing
* revert: revert the workaround for disableHardwareAcceleration crash
* fix: remove GuestViewCrossProcessFrames from the disabled features list
* revert: remove check from BrowserChildProcessLaunchedAndConnected
* docs: chrome-command-line-switches.md: update proxy-server support
Per issue #12443, the proxy URL in proxy-server switch would not
support username and password authentication.
* docs: security.md: correct checklist #14 markdown
When running "npm run lint:docs" script, linting warning suggests
"Broken links: #13-disable-or-limit-creation-of-new-windows". Update
accordingly to #14.
The `url` module is not a constructor; change `require('url')` to
`require('url').URL`. Also, check the entire origin rather than just
the hostname, since otherwise `http://my-own-server.com` is allowed in
addition to `https://my-own-server.com`, in violation of point 1 (only
load secure content).
Signed-off-by: Anders Kaseorg <andersk@mit.edu>