Generate projects for Visual Studio 2017 by default

GN should generate projects for Visual Studio 2017 by default since this
is the default compiler now.

Bug: 683729
Change-Id: I560983cf4c228a785e0ed2648567c7e0f07584d4
Reviewed-on: https://chromium-review.googlesource.com/700258
Reviewed-by: Dirk Pranke <dpranke@chromium.org>
Reviewed-by: Bruce Dawson <brucedawson@chromium.org>
Commit-Queue: Tomasz Moniuszko <tmoniuszko@opera.com>
Cr-Commit-Position: refs/heads/master@{#506665}
1 file changed