Improve metrics for display list canvas fallback reason

tools/metrics/histograms/histograms.xml

Index: tools/metrics/histograms/histograms.xml
diff --git a/tools/metrics/histograms/histograms.xml b/tools/metrics/histograms/histograms.xml
index 8b5e6568d54ace888389113593bc710fc455201c..454b1f113d66d48a1b80b4f382d194f8cbfdf76f 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -77536,7 +77536,8 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <int value="4" label="Flush for initial clear."/>
   <int value="5" label="Flush after drawing from a WebGL canvas."/>
   <int value="6" label="Acquiring snapshot for getImageData()."/>
-  <int value="7" label="Acquiring snapshot for WebGL texture upload."/>
+  <int value="7"
+      label="Acquiring snapshot for WebGL texture upload. (obsolete)"/>
   <int value="8"
       label="Acquiring snapshot for direct painting of canvas contents."/>
   <int value="9" label="Acquiring snapshot for toDataURL()"/>
@@ -77558,6 +77559,12 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
              production)."/>
   <int value="22" label="Acquiring snapshot for copiedImage()."/>
   <int value="23" label="Acquiring snapshot for drawImageIntoBuffer()."/>
+  <int value="24" label="Acquiring snapshot for WebGL texImage2D()."/>
+  <int value="25" label="Acquiring snapshot for WebGL texSubImage2D()."/>
+  <int value="26" label="Acquiring snapshot for WebGL texImage3D()."/>
+  <int value="27" label="Acquiring snapshot for WebGL texSubImage3D()."/>
+  <int value="28" label="Acquiring snapshot for copy to clipboard."/>
+  <int value="29" label="Acquiring snapshot for createImageBitmap()."/>
 </enum>
 
 <enum name="CanvasGPUAccelerated2DCanvasDisableDeferralReason" type="int">