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

ui/ozone/common/gpu/ozone_gpu_message_params.cc

Index: ui/ozone/common/gpu/ozone_gpu_message_params.cc
diff --git a/ui/ozone/common/gpu/ozone_gpu_message_params.cc b/ui/ozone/common/gpu/ozone_gpu_message_params.cc
index 20bb6eabe855c435f8aa9c30d5d749315e0bf94d..7924ee040b054281aa34e7b5d78408502a21b458 100644
--- a/ui/ozone/common/gpu/ozone_gpu_message_params.cc
+++ b/ui/ozone/common/gpu/ozone_gpu_message_params.cc
@@ -18,6 +18,9 @@ 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() {}
@@ -31,6 +34,9 @@ OverlayCheck_Params::OverlayCheck_Params(
       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() {
 }