Rename ValueSet* to HistogramSet*.

tracing/trace_viewer.gypi

Index: tracing/trace_viewer.gypi
diff --git a/tracing/trace_viewer.gypi b/tracing/trace_viewer.gypi
index d7cbaa9ad6cae33f4ef187aa09a69cfab2a4cea7..b720c8e948c8289f97a37c0d8c00c1defa0602d3 100644
--- a/tracing/trace_viewer.gypi
+++ b/tracing/trace_viewer.gypi
@@ -504,6 +504,7 @@
       'tracing/value/diagnostics/value_ref.html',
       'tracing/value/generic_table.html',
       'tracing/value/histogram.html',
+      'tracing/value/histogram_set.html',
       'tracing/value/numeric.html',
       'tracing/value/ui/array_of_numbers_span.html',
       'tracing/value/ui/breakdown_span.html',
@@ -511,6 +512,8 @@
       'tracing/value/ui/diagnostic_span.html',
       'tracing/value/ui/generic_diagnostic_span.html',
       'tracing/value/ui/generic_table_view.html',
+      'tracing/value/ui/histogram_set_table.html',
+      'tracing/value/ui/histogram_set_view.html',
       'tracing/value/ui/histogram_span.html',
       'tracing/value/ui/iteration_info_span.html',
       'tracing/value/ui/preferred_display_unit.html',
@@ -521,9 +524,6 @@
       'tracing/value/ui/scalar_diagnostic_span.html',
       'tracing/value/ui/scalar_map_table.html',
       'tracing/value/ui/scalar_span.html',
-      'tracing/value/ui/value_set_table.html',
-      'tracing/value/ui/value_set_view.html',
-      'tracing/value/value_set.html',
     ],
     'tracing_img_files': [
       'tracing/ui/extras/chrome/cc/images/input-event.png',