Create minidumps for Java-only crashes

BUG=477479

Review URL: https://codereview.chromium.org/1109243002

Cr-Commit-Position: refs/heads/master@{#328620}
diff --git a/base/android/build_info.h b/base/android/build_info.h
index 9d73bdb..d6155b9 100644
--- a/base/android/build_info.h
+++ b/base/android/build_info.h
@@ -99,7 +99,9 @@
     return java_exception_info_;
   }
 
-  void set_java_exception_info(const std::string& info);
+  void SetJavaExceptionInfo(const std::string& info);
+
+  void ClearJavaExceptionInfo();
 
   static bool RegisterBindings(JNIEnv* env);