[Win] Switch Content Shell to use Crashpad instead of Breakpad.

Test:
  ninja -C out\debug
  python content\shell\tools\breakpad_integration_test.py ^
      --build-dir=out\debug ^
      --binary=out\debug\content_shell.exe

Bug: 466890
Change-Id: I76bf5c3e165d450d401aa3ac689cb0b5b49f3511
Reviewed-on: https://chromium-review.googlesource.com/760549
Reviewed-by: Mark Mentovai <mark@chromium.org>
Reviewed-by: Jochen Eisinger <jochen@chromium.org>
Commit-Queue: Robert Sesek <rsesek@chromium.org>
Cr-Commit-Position: refs/heads/master@{#516310}
11 files changed