Some plumbing for the beginning of getting handles into snapshot/minidump

snapshot/minidump/process_snapshot_minidump.cc

Index: snapshot/minidump/process_snapshot_minidump.cc
diff --git a/snapshot/minidump/process_snapshot_minidump.cc b/snapshot/minidump/process_snapshot_minidump.cc
index d07274f3acfe5098447245803b4a9ee510b62cf0..2d6c6dbff67814e4dc5d09055a9ca6fa5ca1ba77 100644
--- a/snapshot/minidump/process_snapshot_minidump.cc
+++ b/snapshot/minidump/process_snapshot_minidump.cc
@@ -184,6 +184,12 @@ std::vector<const MemoryMapRegionSnapshot*> ProcessSnapshotMinidump::MemoryMap()
   return std::vector<const MemoryMapRegionSnapshot*>();
 }
 
+std::vector<HandleSnapshot> ProcessSnapshotMinidump::Handles() const {
+  INITIALIZATION_STATE_DCHECK_VALID(initialized_);
+  NOTREACHED();  // https://code.google.com/p/crashpad/issues/detail?id=10
+  return std::vector<HandleSnapshot>();
+}
+
 std::vector<const MemorySnapshot*> ProcessSnapshotMinidump::ExtraMemory()
     const {
   INITIALIZATION_STATE_DCHECK_VALID(initialized_);