viz: Disable auto_resize_output_surface for Chrome OS

Disabling this prevents drawing the UI in the corner of an external
display at the internal display's size when closing the lid.

This makes the transition in this use case smoother, and also avoids
displaying uninitialized framebuffer contents on some gpus.

BUG=898524

Change-Id: Id23ef472ad7d7504c74644bd11186a4380e36f13
Reviewed-on: https://chromium-review.googlesource.com/c/1352709Reviewed-by: Daniele Castagna <dcastagna@chromium.org>
Commit-Queue: Drew Davenport <ddavenport@chromium.org>
Cr-Commit-Position: refs/heads/master@{#611875}

components/viz/host/renderer_settings_creation.cc

@@ -50,6 +50,8 @@ RendererSettings CreateRendererSettings() {
 #elif defined(OS_MACOSX)
   renderer_settings.release_overlay_resources_after_gpu_query = true;
   renderer_settings.auto_resize_output_surface = false;
+#elif defined(OS_CHROMEOS)
+  renderer_settings.auto_resize_output_surface = false;
 #endif
   renderer_settings.tint_gl_composited_content =
       command_line->HasSwitch(switches::kTintGlCompositedContent);