Plumb overlay processing into DirectRenderer.

cc/output/overlay_candidate.cc

Index: cc/output/overlay_candidate.cc
diff --git a/cc/output/overlay_candidate.cc b/cc/output/overlay_candidate.cc
index dd3ebc27ef05c79fa36b99bcdb2c481d63dbff88..0692cdf97400bf77f5ac78f1ff4ae565770e36a6 100644
--- a/cc/output/overlay_candidate.cc
+++ b/cc/output/overlay_candidate.cc
@@ -2,7 +2,9 @@
 // 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 {
 
@@ -14,4 +16,24 @@ OverlayCandidate::OverlayCandidate()
 
 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