fsamuel@ taking OWNERship of small bits of content/renderer for surface synchronization

Surface synchronization code is plumbed through RenderWidget, RenderViewImpl (because it
currently is a RenderWidget) and RenderFrameProxy (and the ChildFrameCompositor interface).

I'd like to take OWNERship of those files in order to expedite work on child allocated
LocalSurfaceIds for navigation (should improve time to contentful paint metric) and
to add Android top-bar synchronization and text selection handle synchronization support.

Change-Id: Ida8816c495ca64e326ee09f4e5d648f8dcac15b1
Reviewed-on: https://chromium-review.googlesource.com/1026212Reviewed-by: Antoine Labour <piman@chromium.org>
Reviewed-by: Nasko Oskov <nasko@chromium.org>
Commit-Queue: Fady Samuel <fsamuel@chromium.org>
Cr-Commit-Position: refs/heads/master@{#553210}

content/renderer/OWNERS

@@ -9,4 +9,8 @@ per-file renderer_font_platform_win.*=scottmg@chromium.org
 per-file renderer_font_platform_win.*=cpu@chromium.org
 
 # For surface ID propagation and synchronization
+per-file render_frame_proxy.*=fsamuel@chromium.org
+per-file render_view_impl.*=fsamuel@chromium.org
+per-file render_widget.*=fsamuel@chromium.org
+per-file child_frame_compositor.*=fsamuel@chromium.org
 per-file child_frame_compositing_helper.*=fsamuel@chromium.org