Bug 1255926 - Exclude GCM and Push test files from Gradle configuration when !MOZ_ANDROID_GCM. r=bustage

MozReview-Commit-ID: GsYEyF7PTbS

mobile/android/app/build.gradle

@@ -132,6 +132,11 @@ android {
         test {
             java {
                 srcDir "${topsrcdir}/mobile/android/tests/background/junit4/src"
+
+                if (!mozconfig.substs.MOZ_ANDROID_GCM) {
+                    exclude 'org/mozilla/gecko/gcm/**/*.java'
+                    exclude 'org/mozilla/gecko/push/**/*.java'
+                }
             }
         }