Implemented StructTraits for cc::TextureMailbox

cc/ipc/texture_mailbox_struct_traits.h

Index: cc/ipc/texture_mailbox_struct_traits.h
diff --git a/cc/ipc/texture_mailbox_struct_traits.h b/cc/ipc/texture_mailbox_struct_traits.h
new file mode 100644
index 0000000000000000000000000000000000000000..8fb5655e5d413949ee3b66e868c27fde441e098b
--- /dev/null
+++ b/cc/ipc/texture_mailbox_struct_traits.h
@@ -0,0 +1,72 @@
+// Copyright 2017 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.
+
+#ifndef CC_IPC_TEXTURE_MAILBOX_STRUCT_TRAITS_H_
+#define CC_IPC_TEXTURE_MAILBOX_STRUCT_TRAITS_H_
+
+#include "cc/ipc/texture_mailbox.mojom-shared.h"
+#include "cc/resources/texture_mailbox.h"
+
+namespace mojo {
+
+template <>
+struct StructTraits<cc::mojom::TextureMailboxDataView, cc::TextureMailbox> {
+  static const gpu::MailboxHolder& mailbox_holder(
+      const cc::TextureMailbox& input) {
+    return input.mailbox_holder_;
+  }
+
+  static const gfx::Size& size_in_pixels(const cc::TextureMailbox& input) {
+    return input.size_in_pixels_;
+  }
+
+  static bool is_overlay_candidate(const cc::TextureMailbox& input) {
+    return input.is_overlay_candidate_;
+  }
+
+  static bool is_backed_by_surface_texture(const cc::TextureMailbox& input) {
+#if defined(OS_ANDROID)

[vmpstr, 2017/01/27 21:08:05]

I assume the android compiler is OK with

return a;
return b;?

Some compilers would warn about unreachable code

[Saman Sami, 2017/01/27 21:24:53]

It doesn't seem to mind, but to avoid possible problems in the future. I'll fix
this.

+    return input.is_backed_by_surface_texture_;
+#endif
+    return false;
+  }
+
+  static bool wants_promotion_hint(const cc::TextureMailbox& input) {
+#if defined(OS_ANDROID)
+    return input.wants_promotion_hint_;
+#endif
+    return false;
+  }
+
+  static bool secure_output_only(const cc::TextureMailbox& input) {
+    return input.secure_output_only_;
+  }
+
+  static bool nearest_neighbor(const cc::TextureMailbox& input) {
+    return input.nearest_neighbor_;
+  }
+
+  static const gfx::ColorSpace& color_space(const cc::TextureMailbox& input) {
+    return input.color_space_;
+  }
+
+  static bool Read(cc::mojom::TextureMailboxDataView data,
+                   cc::TextureMailbox* out) {
+#if defined(OS_ANDROID)
+    out->is_backed_by_surface_texture_ = data.is_backed_by_surface_texture();
+    out->wants_promotion_hint_ = data.wants_promotion_hint();
+#endif
+    out->is_overlay_candidate_ = data.is_overlay_candidate();
+    out->secure_output_only_ = data.secure_output_only();
+    out->nearest_neighbor_ = data.nearest_neighbor();
+
+    return data.ReadMailboxHolder(&out->mailbox_holder_) &&
+           data.ReadSizeInPixels(&out->size_in_pixels_) &&
+           data.ReadColorSpace(&out->color_space_);
+  }
+};
+
+}  // namespace mojo
+
+#endif  // CC_IPC_TEXTURE_MAILBOX_STRUCT_TRAITS_H_