Allow Mojo structs as map keys

mojo/android/javatests/src/org/chromium/mojo/bindings/ValidationTest.java

Index: mojo/android/javatests/src/org/chromium/mojo/bindings/ValidationTest.java
diff --git a/mojo/android/javatests/src/org/chromium/mojo/bindings/ValidationTest.java b/mojo/android/javatests/src/org/chromium/mojo/bindings/ValidationTest.java
index b62fe6da79ab176fddcd10c5edfe78c534a42958..1c4f2a76557f35664f3785bb0b4afd3e6efaf8f2 100644
--- a/mojo/android/javatests/src/org/chromium/mojo/bindings/ValidationTest.java
+++ b/mojo/android/javatests/src/org/chromium/mojo/bindings/ValidationTest.java
@@ -64,6 +64,10 @@ public class ValidationTest extends MojoTestCase {
             if (pathname.getName().startsWith("conformance_mthd19_good")) {

[yzshen1, 2016/09/21 23:17:52]

I just realized that the naming of conformance_mthd19_good is inconsistent:
usually if a validation test case is expected to fail, the name explains the
failure, e.g., conformance_mthd19_exceed_recursion_limit.

[tibell, 2016/09/22 05:17:23]

Done.

                 return false;
             }
+            // TODO(tibell): Allow structs as map keys in Java.
+            if (pathname.getName().startsWith("conformance_mthd20_good")) {
+                return false;
+            }
             return pathname.isFile() && pathname.getName().startsWith(mPrefix)
                     && pathname.getName().endsWith(".data");
         }