Actually we shouldn't always set Overlap flag on for all xlsx charts...

The correct fix unfortunately would require making the axis label layout
smarter, to avoid overlapping of angled text label objects.

Change-Id: I92198dbb90fd4a206ee226307992343d064f733a

chart2/qa/extras/chart2import.cxx

@@ -87,7 +87,7 @@ public:
     CPPUNIT_TEST(testFdo54361);
     CPPUNIT_TEST(testFdo54361_1);
     CPPUNIT_TEST(testAutoBackgroundXLSX);
-    CPPUNIT_TEST(testTextCanOverlapXLSX);
+    // CPPUNIT_TEST(testTextCanOverlapXLSX); // TODO : temporarily disabled.
     CPPUNIT_TEST(testNumberFormatsXLSX);
     CPPUNIT_TEST_SUITE_END();
 

oox/source/drawingml/chart/axismodel.cxx

@@ -46,7 +46,7 @@ AxisModel::AxisModel( sal_Int32 nTypeId ) :
     mnMinorTimeUnit( XML_days ),
     mnOrientation( XML_minMax ),
     mnTickLabelPos( XML_nextTo ),
-    mnTickLabelSkip( 1 ),
+    mnTickLabelSkip( 0 ),
     mnTickMarkSkip( 0 ),
     mnTypeId( nTypeId ),
     mbAuto( false ),