Add ClientNativePixmap multi-planar support.

ui/gfx/native_pixmap_handle.cc

Index: ui/gfx/native_pixmap_handle.cc
diff --git a/ui/gfx/native_pixmap_handle.cc b/ui/gfx/native_pixmap_handle.cc
index a3092b265a834176575d61bfa38cf138badbf960..aedc9f94462763933cb84ace2fcfc34445dc7695 100644
--- a/ui/gfx/native_pixmap_handle.cc
+++ b/ui/gfx/native_pixmap_handle.cc
@@ -2,14 +2,20 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include <stdint.h>
+
 #include "ui/gfx/native_pixmap_handle.h"
 
 namespace gfx {
 
-NativePixmapPlane::NativePixmapPlane() : stride(0), offset(0), modifier(0) {}
+NativePixmapPlane::NativePixmapPlane()
+    : stride(0), offset(0), size(0), modifier(0) {}
 
-NativePixmapPlane::NativePixmapPlane(int stride, int offset, uint64_t modifier)
-    : stride(stride), offset(offset), modifier(modifier) {}
+NativePixmapPlane::NativePixmapPlane(int stride,
+                                     int offset,
+                                     size_t size,
+                                     uint64_t modifier)
+    : stride(stride), offset(offset), size(size), modifier(modifier) {}
 
 NativePixmapPlane::NativePixmapPlane(const NativePixmapPlane& other) = default;