cc: Add GpuMemoryBufferHandle to TextureMailbox

cc/resources/texture_mailbox.h

Index: cc/resources/texture_mailbox.h
diff --git a/cc/resources/texture_mailbox.h b/cc/resources/texture_mailbox.h
index 8dcf98ed3802e0ade6468d5f95f3f99631a69fe5..681864ed01d79c2c510f62c355ee1f7a71135dba 100644
--- a/cc/resources/texture_mailbox.h
+++ b/cc/resources/texture_mailbox.h
@@ -14,6 +14,7 @@
 #include "cc/base/cc_export.h"
 #include "gpu/command_buffer/common/mailbox_holder.h"
 #include "ui/gfx/geometry/size.h"
+#include "ui/gfx/gpu_memory_buffer.h"
 
 namespace cc {
 class SharedBitmap;
@@ -31,9 +32,11 @@ class CC_EXPORT TextureMailbox {
                  const gpu::SyncToken& sync_token,
                  uint32_t target,
                  const gfx::Size& size_in_pixels,
+                 const gfx::GpuMemoryBufferHandle& gpu_memory_buffer_handle,
                  bool is_overlay_candidate,
                  bool secure_output_only);
   TextureMailbox(SharedBitmap* shared_bitmap, const gfx::Size& size_in_pixels);
+  TextureMailbox(const TextureMailbox& other);
 
   ~TextureMailbox();
 
@@ -73,6 +76,7 @@ class CC_EXPORT TextureMailbox {
   gpu::MailboxHolder mailbox_holder_;
   SharedBitmap* shared_bitmap_;
   gfx::Size size_in_pixels_;
+  gfx::GpuMemoryBufferHandle gpu_memory_buffer_handle_;
   bool is_overlay_candidate_;
   bool secure_output_only_;
   bool nearest_neighbor_;