GitLab

This change adds a condition so that the renderer part of the contextual
search code is only created when the corresponding build flag is defined.
It also updates the browser-side ContextualSearchJsApiService interface
binder registration depend on the same build flag rather than the more
generic OS_ANDROID condition.

Bug: 1047680
Change-Id: Ia0c88558736b028b96b0092acb6dde4a7a526b87
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2055992Reviewed-by: Theresa  <twellington@chromium.org>
Reviewed-by: Daniel Cheng <dcheng@chromium.org>
Reviewed-by: Donn Denman <donnd@chromium.org>
Commit-Queue: Oksana Zhuravlova <oksamyt@chromium.org>
Cr-Commit-Position: refs/heads/master@{#743223}