Add cc::SurfaceInfo::is_valid()

cc/ipc/cc_param_traits_unittest.cc

 // Copyright (c) 2012 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 <stddef.h>
 #include <string.h>
 #include <algorithm>
 #include <utility>
 
 #include "base/macros.h"
@@ skipping 614 matching lines @@
 
   CompositorFrame frame_out;
   base::PickleIterator iter(msg);
   EXPECT_TRUE(IPC::ParamTraits<CompositorFrame>::Read(&msg, &iter, &frame_out));
 
   ASSERT_EQ(2u, frame_out.resource_list.size());
   Compare(arbitrary_resource1, frame_out.resource_list[0]);
   Compare(arbitrary_resource2, frame_out.resource_list[1]);
 }
 
+TEST_F(CCParamTraitsTest, SurfaceInfo) {
+  IPC::Message msg(1, 2, IPC::Message::PRIORITY_NORMAL);
+  const cc::SurfaceId kArbitrarySurfaceId(
+      kArbitraryFrameSinkId,
+      cc::LocalSurfaceId(3, base::UnguessableToken::Create()));
+  constexpr float kArbitraryDeviceScaleFactor = 0.9f;
+  const gfx::Size kArbitrarySize(65, 321);
+  const cc::SurfaceInfo surface_info_in(
+      kArbitrarySurfaceId, kArbitraryDeviceScaleFactor, kArbitrarySize);
+  IPC::ParamTraits<cc::SurfaceInfo>::Write(&msg, surface_info_in);
+
+  cc::SurfaceInfo surface_info_out;
+  base::PickleIterator iter(msg);
+  EXPECT_TRUE(
+      IPC::ParamTraits<cc::SurfaceInfo>::Read(&msg, &iter, &surface_info_out));
+
+  ASSERT_EQ(surface_info_in, surface_info_out);
+}
+
 }  // namespace
 }  // namespace content