ui: Add out-of-line copy ctors for complex classes.

ui/ozone/common/gpu/ozone_gpu_message_params.cc

 // Copyright 2014 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 "ui/ozone/common/gpu/ozone_gpu_message_params.h"
 
 #include "ui/gfx/geometry/rect_conversions.h"
 #include "ui/gfx/ipc/gfx_param_traits.h"
 #include "ui/gfx/ipc/skia/gfx_skia_param_traits.h"
 
 namespace ui {
 
 DisplayMode_Params::DisplayMode_Params() {
 }
 
 DisplayMode_Params::~DisplayMode_Params() {}
 
 DisplaySnapshot_Params::DisplaySnapshot_Params() {
 }
 
+DisplaySnapshot_Params::DisplaySnapshot_Params(
+    const DisplaySnapshot_Params& other) = default;
+
 DisplaySnapshot_Params::~DisplaySnapshot_Params() {}
 
 OverlayCheck_Params::OverlayCheck_Params() {}
 
 OverlayCheck_Params::OverlayCheck_Params(
     const OverlayCandidatesOzone::OverlaySurfaceCandidate& candidate)
     : buffer_size(candidate.buffer_size),
       transform(candidate.transform),
       format(candidate.format),
       display_rect(gfx::ToNearestRect(candidate.display_rect)),
       crop_rect(candidate.crop_rect),
       plane_z_order(candidate.plane_z_order) {}
 
+OverlayCheck_Params::OverlayCheck_Params(const OverlayCheck_Params& other) =
+    default;
+
 OverlayCheck_Params::~OverlayCheck_Params() {
 }
 
 bool OverlayCheck_Params::operator<(const OverlayCheck_Params& param) const {
   int lwidth = buffer_size.width();
   int lheight = buffer_size.height();
   int rwidth = param.buffer_size.width();
   int rheight = param.buffer_size.height();
 
   return std::tie(plane_z_order, format, display_rect, lwidth, lheight,
                   transform) < std::tie(param.plane_z_order, param.format,
                                         param.display_rect, rwidth, rheight,
                                         param.transform);
 }
 
 }  // namespace ui