Improve process launch handle sharing API.

sandbox/win/src/sandbox_policy_base.h

Index: sandbox/win/src/sandbox_policy_base.h
diff --git a/sandbox/win/src/sandbox_policy_base.h b/sandbox/win/src/sandbox_policy_base.h
index 5fc3f50c1455b6d6d3b13b83142b2a19b794c2d6..ac0e24638b017cfe63acac27db3de975ad13e282 100644
--- a/sandbox/win/src/sandbox_policy_base.h
+++ b/sandbox/win/src/sandbox_policy_base.h
@@ -101,7 +101,7 @@ class PolicyBase final : public TargetPolicy {
   HANDLE GetStderrHandle();
 
   // Returns the list of handles being shared with the target process.
-  const base::HandlesToInheritVector& GetHandlesBeingShared();
+  const std::vector<HANDLE>& GetHandlesBeingShared();
 
  private:
   ~PolicyBase();
@@ -165,7 +165,7 @@ class PolicyBase final : public TargetPolicy {
   // Contains the list of handles being shared with the target process.
   // This list contains handles other than the stderr/stdout handles which are
   // shared with the target at times.
-  base::HandlesToInheritVector handles_to_share_;
+  std::vector<HANDLE> handles_to_share_;
   bool enable_opm_redirection_;
 
   DISALLOW_COPY_AND_ASSIGN(PolicyBase);