win: make CrashpadInfo retrievable

snapshot/crashpad_info_client_options_test_module.cc

Index: snapshot/crashpad_info_client_options_test_module.cc
diff --git a/snapshot/mac/crashpad_info_client_options_test_module.cc b/snapshot/crashpad_info_client_options_test_module.cc
similarity index 83%
rename from snapshot/mac/crashpad_info_client_options_test_module.cc
rename to snapshot/crashpad_info_client_options_test_module.cc
index be5f00a2abdd104d4b3c67fc5c1e63ce7c6e634d..357d35e6596c95fef3186cfa97dd6db8f5f8c514 100644
--- a/snapshot/mac/crashpad_info_client_options_test_module.cc
+++ b/snapshot/crashpad_info_client_options_test_module.cc
@@ -12,9 +12,15 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#include "build/build_config.h"
 #include "client/crashpad_info.h"
 
+#if defined(OS_POSIX)
 #define EXPORT __attribute__((visibility("default")))
+#elif defined(OS_WIN)
+#include <windows.h>
+#define EXPORT __declspec(dllexport)
+#endif  // OS_POSIX
 
 extern "C" {
 
@@ -33,3 +39,9 @@ EXPORT crashpad::CrashpadInfo* TestModule_GetCrashpadInfo() {
 }
 
 }  // extern "C"
+
+#if defined(OS_WIN)
+BOOL WINAPI DllMain(HINSTANCE hinstance, DWORD reason, LPVOID reserved) {

[Mark Mentovai, 2015/04/30 20:58:35]

Or link with /NOENTRY, right? (You can leave DllMain here, this question is just
for my own curiosity.)

[scottmg, 2015/04/30 22:09:43]

Yes, that would be fine too. (I generally lean towards putting as much as
possible in the code to avoid too many required magic build flags, but in this
case, maybe less clutter would be better.)

+  return TRUE;
+}
+#endif  // OS_WIN