Fix a findbugs error in Addr2LineWorkerPool.java.

tools/binary_size/java/src/org/chromium/tools/binary_size/Addr2LineWorkerPool.java

Index: tools/binary_size/java/src/org/chromium/tools/binary_size/Addr2LineWorkerPool.java
diff --git a/tools/binary_size/java/src/org/chromium/tools/binary_size/Addr2LineWorkerPool.java b/tools/binary_size/java/src/org/chromium/tools/binary_size/Addr2LineWorkerPool.java
index 4f0e517c79fbfb5a4c1d7c205607af2adac8d3f3..626e7e42dc70255c25c2ef3c0489d1dc602fae6b 100644
--- a/tools/binary_size/java/src/org/chromium/tools/binary_size/Addr2LineWorkerPool.java
+++ b/tools/binary_size/java/src/org/chromium/tools/binary_size/Addr2LineWorkerPool.java
@@ -276,6 +276,8 @@ class Addr2LineWorkerPool {
                             inStream = null; // New readers need to be created next iteration
                         }
                     }
+                } catch (RuntimeException e) {
+                    throw e;
                 } catch (Exception e) {
                     e.printStackTrace();
                 } finally {
@@ -464,4 +466,4 @@ class Addr2LineWorkerPool {
     int getDedupeCount() {
         return mDedupeCount.get();
     }
-}
+}