Timeline: Unify TimelineModel's emptyChanged and labelsChanged signals

It doesn't make sense to distinguish between them. When the content
changes, the labels, the number of items, and the "empty" state
change.

Change-Id: I65f77f65828626fd76bfd968abf67b608b6e267b
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>

2 files changed, 2 insertions, 2 deletions

diff --git a/tests/auto/timeline/timelineoverviewrenderer/tst_timelineoverviewrenderer.cpp b/tests/auto/timeline/timelineoverviewrenderer/tst_timelineoverviewrenderer.cpp
index 2e0484bcb9..c7049c27bc 100644
--- a/tests/auto/timeline/timelineoverviewrenderer/tst_timelineoverviewrenderer.cpp
+++ b/tests/auto/timeline/timelineoverviewrenderer/tst_timelineoverviewrenderer.cpp
@@ -42,7 +42,7 @@ public:
         setExpandedRowCount(3);
         for (int i = 0; i < 10; ++i)
             insert(i, i, i);
-        emit emptyChanged();
+        emit contentChanged();
     }
 };
 
diff --git a/tests/auto/timeline/timelinerenderer/tst_timelinerenderer.cpp b/tests/auto/timeline/timelinerenderer/tst_timelinerenderer.cpp
index 6087483fec..f2a88005e0 100644
--- a/tests/auto/timeline/timelinerenderer/tst_timelinerenderer.cpp
+++ b/tests/auto/timeline/timelinerenderer/tst_timelinerenderer.cpp
@@ -45,7 +45,7 @@ public:
         for (int i = 0; i < 10; ++i)
             insert(i, 10 - i, i);
         computeNesting();
-        emit emptyChanged();
+        emit contentChanged();
     }
 };