Fix flaky test?

 - Fix testAttachDetach, process more messages so it actually
   does attach and detach
 - Don't inflate Clocks in QSFragmentTest because they are doing
   something weird...

Test: runtest systemui
Change-Id: I05360630ee8d96158b6ab36660f20588ad158a28
Fixes: 37773362
diff --git a/tests/testables/src/android/testing/BaseFragmentTest.java b/tests/testables/src/android/testing/BaseFragmentTest.java
index b09bcde..32ee091 100644
--- a/tests/testables/src/android/testing/BaseFragmentTest.java
+++ b/tests/testables/src/android/testing/BaseFragmentTest.java
@@ -161,12 +161,12 @@
 
     protected void attachFragmentToWindow() {
         ViewUtils.attachView(mView);
-        TestableLooper.get(this).processMessages(1);
+        TestableLooper.get(this).processAllMessages();
     }
 
     protected void detachFragmentToWindow() {
         ViewUtils.detachView(mView);
-        TestableLooper.get(this).processMessages(1);
+        TestableLooper.get(this).processAllMessages();
     }
 
     protected void destroyFragments() {