The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/c4574c193f0c59d76a2c1314b0a3f1ea5a8a6279

commit c4574c193f0c59d76a2c1314b0a3f1ea5a8a6279
Author: Daniel Cheng <dcheng@chromium.org>
Date: Mon Apr 10 21:21:09 2017

Make WouldLoadReason a scoped enum.

Things like kInvalid and kCreated are too generic to end up in the
top-level Blink namespace. Changing this to be a scoped enum revealed
some difficulties with using/testing scoped enums in Blink which will be
addressed in followup CLs.

Bug:  709817 
Change-Id: Ied242566e204fb3ad6cbf7e703727eada698b57e
Reviewed-on: https://chromium-review.googlesource.com/473469
Reviewed-by: David Grogan <dgrogan@chromium.org>
Commit-Queue: Daniel Cheng <dcheng@chromium.org>
Cr-Commit-Position: refs/heads/master@{#463397}
[modify] https://crrev.com/c4574c193f0c59d76a2c1314b0a3f1ea5a8a6279/third_party/WebKit/Source/core/dom/Document.cpp
[modify] https://crrev.com/c4574c193f0c59d76a2c1314b0a3f1ea5a8a6279/third_party/WebKit/Source/core/dom/Document.h
[modify] https://crrev.com/c4574c193f0c59d76a2c1314b0a3f1ea5a8a6279/third_party/WebKit/Source/core/frame/FrameView.cpp
[modify] https://crrev.com/c4574c193f0c59d76a2c1314b0a3f1ea5a8a6279/third_party/WebKit/Source/core/frame/LocalDOMWindow.cpp
[modify] https://crrev.com/c4574c193f0c59d76a2c1314b0a3f1ea5a8a6279/third_party/WebKit/Source/web/tests/DeferredLoadingTest.cpp