Android: Fix crash in PiiElider.isClassName()

There are several kinds of exceptions that can occur when loading
classes.

Bug: 1156583
Change-Id: I8440a21ab1146e9f50a9f389c2e6d32f46330237
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2579953
Auto-Submit: Andrew Grieve <agrieve@chromium.org>
Reviewed-by: Richard Coles <torne@chromium.org>
Commit-Queue: Richard Coles <torne@chromium.org>
Cr-Commit-Position: refs/heads/master@{#835329}

base/android/java/src/org/chromium/base/PiiElider.java

@@ -130,7 +130,8 @@ public class PiiElider {
         try {
             Class.forName(url, false, ContextUtils.getApplicationContext().getClassLoader());
             return true;
-        } catch (ClassNotFoundException e) {
+        } catch (Throwable e) {
+            // Some examples: ClassNotFoundException, NoClassDefFoundException, VerifyError.
         }
         return false;
     }