exo: Fullscreen overlay candidates support.

components/exo/surface_unittest.cc

Index: components/exo/surface_unittest.cc
diff --git a/components/exo/surface_unittest.cc b/components/exo/surface_unittest.cc
index 7e9481f45854797935231c90cef0457351e522c0..cb41e575fc3bf712337888f08fb365830ef4509c 100644
--- a/components/exo/surface_unittest.cc
+++ b/components/exo/surface_unittest.cc
@@ -5,6 +5,7 @@
 #include "base/bind.h"
 #include "cc/output/compositor_frame.h"
 #include "cc/output/delegated_frame_data.h"
+#include "cc/quads/texture_draw_quad.h"
 #include "cc/surfaces/surface.h"
 #include "cc/surfaces/surface_manager.h"
 #include "components/exo/buffer.h"
@@ -214,6 +215,27 @@ TEST_F(SurfaceTest, SetBlendMode) {
                    ->ShouldDrawWithBlending());
 }
 
+TEST_F(SurfaceTest, OverlayCandidate) {
+  gfx::Size buffer_size(1, 1);
+  std::unique_ptr<Buffer> buffer(new Buffer(
+      exo_test_helper()->CreateGpuMemoryBuffer(buffer_size), 0, 0, true, true));
+  std::unique_ptr<Surface> surface(new Surface);
+
+  surface->Attach(buffer.get());
+  surface->Commit();
+
+  const cc::DelegatedFrameData* frame_data = GetFrameFromSurface(surface.get());
+  ASSERT_EQ(1u, frame_data->render_pass_list.size());
+  ASSERT_EQ(1u, frame_data->render_pass_list.back()->quad_list.size());
+  cc::DrawQuad* draw_quad =
+      frame_data->render_pass_list.back()->quad_list.back();
+  ASSERT_EQ(cc::DrawQuad::TEXTURE_CONTENT, draw_quad->material);
+
+  const cc::TextureDrawQuad* texture_quad =
+      cc::TextureDrawQuad::MaterialCast(draw_quad);
+  EXPECT_FALSE(texture_quad->resource_size_in_pixels().IsEmpty());
+}
+
 TEST_F(SurfaceTest, SetAlpha) {
   gfx::Size buffer_size(1, 1);
   std::unique_ptr<Buffer> buffer(