Fix V8 Tools
Fix xesh
Disable suid sandbox for Linux

I'm not sure if this is the right place to append the command line parameter,
but after the Chromium version bump, PreEarlyInitialization() is not early
enough.
Fix link error when building Debug
Update methods that were renamed in the Content API

Thanks Dongseong Hwang for helping debug this one.
Update OpenColorChooser method signature
Make clang happy

clang could not do this implicit conversion, unlike gcc
Remove unused override
Comply with Chromium style guide on class overrides

And suppress a few clang warnings.