minidump: Add InitializeFromSnapshot() for MinidumpModuleCrashpadInfoListWriter and downstream

snapshot/snapshot.gyp

Index: snapshot/snapshot.gyp
diff --git a/snapshot/snapshot.gyp b/snapshot/snapshot.gyp
index 3b1a8d62fcc3f0421b7e59459cee21d52ecaef2e..9557ba9132b2fdfe8ecfdb620293439a90ae9266 100644
--- a/snapshot/snapshot.gyp
+++ b/snapshot/snapshot.gyp
@@ -75,6 +75,22 @@
       ],
     },
     {
+      'target_name': 'snapshot_test_lib',
+      'type': 'static_library',
+      'dependencies': [
+        'snapshot',
+        '../third_party/mini_chromium/mini_chromium/base/base.gyp:base',
+        '../util/util.gyp:util',
+      ],
+      'include_dirs': [
+        '..',
+      ],
+      'sources': [
+        'test/test_module_snapshot.cc',
+        'test/test_module_snapshot.h',
+      ],
+    },
+    {
       'target_name': 'snapshot_test',
       'type': 'executable',
       'dependencies': [