Plumb overlay processing into DirectRenderer.

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_validator.h"
+#include "cc/output/overlay_candidate.h"
+
+#include "ui/gfx/rect_conversions.h"
 
 namespace cc {
 
 OverlayCandidate::OverlayCandidate()
     : transform(NONE),
       format(RGBA_8888),
       uv_rect(0.f, 0.f, 1.f, 1.f),
       overlay_handled(false) {}
 
 OverlayCandidate::~OverlayCandidate() {}
 
+// static
+OverlayCandidate::OverlayTransform OverlayCandidate::GetOverlayTransform(
+    const gfx::Transform& quad_transform,
+    bool flipped) {
+  if (!quad_transform.IsIdentityOrTranslation())
+    return INVALID;
+
+  return flipped ? FLIP_VERTICAL : NONE;
+}
+
+// static
+gfx::Rect OverlayCandidate::GetOverlayRect(const gfx::Transform& quad_transform,
+                                           const gfx::Rect& rect) {
+  DCHECK(quad_transform.IsIdentityOrTranslation());
+
+  gfx::RectF float_rect(rect);
+  quad_transform.TransformRect(&float_rect);
+  return gfx::ToNearestRect(float_rect);
+}
+
 }  // namespace cc