Histograms: Restore missing obsolete affected-histograms suffix definitions

This restores several obsolete affected-histogram names that are still
were removed by commit c492381b
(crrev.com/c/1106384) and are still being recorded. These are still
useful in versions where the new metrics don't exist.

Change-Id: Iee9a1fd852f19b9cbf7fb0c54ea9999441098ed8
Reviewed-on: https://chromium-review.googlesource.com/1145827Reviewed-by: Alexander Timin <altimin@chromium.org>
Reviewed-by: Steven Holte <holte@chromium.org>
Commit-Queue: Scott Haseley <shaseley@google.com>
Cr-Commit-Position: refs/heads/master@{#578403}

tools/metrics/histograms/histograms.xml

@@ -125066,8 +125066,11 @@ uploading your change for review.
     separator=".">
   <suffix name="Background"/>
   <suffix name="Foreground"/>
+  <affected-histogram name="RendererScheduler.TaskCPUDurationPerThreadType"/>
   <affected-histogram name="RendererScheduler.TaskCPUDurationPerThreadType2"/>
+  <affected-histogram name="RendererScheduler.TaskDurationPerTaskType"/>
   <affected-histogram name="RendererScheduler.TaskDurationPerTaskType2"/>
+  <affected-histogram name="RendererScheduler.TaskDurationPerThreadType"/>
   <affected-histogram name="RendererScheduler.TaskDurationPerThreadType2"/>
 </histogram_suffixes>
 
@@ -125151,6 +125154,7 @@ uploading your change for review.
   <suffix name="Visible"
       label="Time spent in tasks of a particular queue type when the renderer
              is visible."/>
+  <affected-histogram name="RendererScheduler.TaskDurationPerQueueType2"/>
   <affected-histogram name="RendererScheduler.TaskDurationPerQueueType3"/>
 </histogram_suffixes>