viz: Don't consider TileQuad as overlay candidates

The only platform where we promote TileQuad to overlays
is on Mac where we don't use OverlayCandidate related code.

Bug: 1022544

Change-Id: I917a06110be0a4d106f692dbc9939253aa76a86c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2067551
Commit-Queue: Khushal <khushalsagar@chromium.org>
Reviewed-by: Khushal <khushalsagar@chromium.org>
Cr-Commit-Position: refs/heads/master@{#743812}

components/viz/service/display/overlay_candidate.cc

@@ -130,9 +130,6 @@ bool OverlayCandidate::FromDrawQuad(DisplayResourceProvider* resource_provider,
     case DrawQuad::Material::kTextureContent:
       return FromTextureQuad(resource_provider,
                              TextureDrawQuad::MaterialCast(quad), candidate);
-    case DrawQuad::Material::kTiledContent:
-      return FromTileQuad(resource_provider, TileDrawQuad::MaterialCast(quad),
-                          candidate);
     case DrawQuad::Material::kVideoHole:
       return FromVideoHoleQuad(
           resource_provider, VideoHoleDrawQuad::MaterialCast(quad), candidate);
@@ -305,19 +302,6 @@ bool OverlayCandidate::FromTextureQuad(
   return true;
 }
 
-// static
-bool OverlayCandidate::FromTileQuad(DisplayResourceProvider* resource_provider,
-                                    const TileDrawQuad* quad,
-                                    OverlayCandidate* candidate) {
-  if (!FromDrawQuadResource(resource_provider, quad, quad->resource_id(), false,
-                            candidate)) {
-    return false;
-  }
-  candidate->resource_size_in_pixels = quad->texture_size;
-  candidate->uv_rect = quad->tex_coord_rect;
-  return true;
-}
-
 // static
 bool OverlayCandidate::FromStreamVideoQuad(
     DisplayResourceProvider* resource_provider,

components/viz/service/display/overlay_candidate.h

@@ -29,7 +29,6 @@ namespace viz {
 class DisplayResourceProvider;
 class StreamVideoDrawQuad;
 class TextureDrawQuad;
-class TileDrawQuad;
 class VideoHoleDrawQuad;
 
 class VIZ_SERVICE_EXPORT OverlayCandidate {
@@ -129,9 +128,6 @@ class VIZ_SERVICE_EXPORT OverlayCandidate {
   static bool FromTextureQuad(DisplayResourceProvider* resource_provider,
                               const TextureDrawQuad* quad,
                               OverlayCandidate* candidate);
-  static bool FromTileQuad(DisplayResourceProvider* resource_provider,
-                           const TileDrawQuad* quad,
-                           OverlayCandidate* candidate);
   static bool FromStreamVideoQuad(DisplayResourceProvider* resource_provider,
                                   const StreamVideoDrawQuad* quad,
                                   OverlayCandidate* candidate);