Enable NV12 HW overlays.

cc/output/overlay_candidate.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/output/overlay_candidate.h"
 
 #include <algorithm>
 #include <limits>
 #include "base/logging.h"
 #include "cc/base/math_util.h"
 #include "cc/quads/solid_color_draw_quad.h"
 #include "cc/quads/stream_video_draw_quad.h"
 #include "cc/quads/texture_draw_quad.h"
 #include "cc/quads/tile_draw_quad.h"
 #include "cc/resources/resource_provider.h"
 #include "ui/gfx/geometry/rect_conversions.h"
 #include "ui/gfx/geometry/vector3d_f.h"
 
 namespace cc {
 
 namespace {
 // Tolerance for considering axis vector elements to be zero.
 const SkMScalar kEpsilon = std::numeric_limits<float>::epsilon();
 
 const gfx::BufferFormat kOverlayFormats[] = {
     gfx::BufferFormat::RGBX_8888, gfx::BufferFormat::RGBA_8888,
     gfx::BufferFormat::BGRX_8888, gfx::BufferFormat::BGRA_8888,
-    gfx::BufferFormat::BGR_565};
+    gfx::BufferFormat::BGR_565,   gfx::BufferFormat::YUV_420_BIPLANAR};
 
 enum Axis { NONE, AXIS_POS_X, AXIS_NEG_X, AXIS_POS_Y, AXIS_NEG_Y };
 
 Axis VectorToAxis(const gfx::Vector3dF& vec) {
   if (std::abs(vec.z()) > kEpsilon)
     return NONE;
   const bool x_zero = (std::abs(vec.x()) <= kEpsilon);
   const bool y_zero = (std::abs(vec.y()) <= kEpsilon);
   if (x_zero && !y_zero)
     return (vec.y() > 0) ? AXIS_POS_Y : AXIS_NEG_Y;
@@ skipping 306 matching lines @@
 
 OverlayCandidateList& OverlayCandidateList::operator=(
     OverlayCandidateList&& other) = default;
 
 void OverlayCandidateList::AddPromotionHint(const OverlayCandidate& candidate) {
   promotion_hint_info_map_[candidate.resource_id] =
       candidate.display_rect.origin();
 }
 
 }  // namespace cc