Export IPC messages used by mac tests

content/common/gpu/gpu_messages.h

Index: content/common/gpu/gpu_messages.h
diff --git a/content/common/gpu/gpu_messages.h b/content/common/gpu/gpu_messages.h
index 04278dd2d67642c6e82063166053e077dd69b150..e5e49f1c6a4558cf6032f2bfa5effacd2972a52d 100644
--- a/content/common/gpu/gpu_messages.h
+++ b/content/common/gpu/gpu_messages.h
@@ -9,6 +9,7 @@
 #include <string>
 
 #include "base/shared_memory.h"
+#include "content/common/content_export.h"
 #include "content/common/gpu/gpu_memory_allocation.h"
 #include "content/common/gpu/gpu_process_launch_causes.h"
 #include "content/public/common/common_param_traits.h"
@@ -46,6 +47,9 @@ IPC_STRUCT_BEGIN(GpuHostMsg_AcceleratedSurfaceNew_Params)
 #endif
 IPC_STRUCT_END()
 
+//struct CONTENT_EXPORT GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params;
+#undef IPC_MESSAGE_EXPORT
+#define IPC_MESSAGE_EXPORT CONTENT_EXPORT

[Nico, 2012/03/16 05:48:26]

This is the only params struct used by tests in the whole file. Is it preferable
to just add the blanket "export everything in this file" define at the top of
the file, or do you prefer exporting just the struct that's actually used?

I think I prefer exporting everything, because limiting visibility doesn't buy
all that much (ideally, many of these structs would be used by tests, which
means they'd have to be exported anyway), but it increases maintenance cost.

 IPC_STRUCT_BEGIN(GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params)
   IPC_STRUCT_MEMBER(int32, surface_id)
   IPC_STRUCT_MEMBER(uint64, surface_handle)
@@ -56,6 +60,8 @@ IPC_STRUCT_BEGIN(GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params)
   IPC_STRUCT_MEMBER(gfx::PluginWindowHandle, window)
 #endif
 IPC_STRUCT_END()
+#undef IPC_MESSAGE_EXPORT
+#define IPC_MESSAGE_EXPORT
 
 IPC_STRUCT_BEGIN(GpuHostMsg_AcceleratedSurfacePostSubBuffer_Params)
   IPC_STRUCT_MEMBER(int32, surface_id)