Add UMA metrics for ffmpeg color ranges.

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 6a1961d47885f08227f44d481fd0415d107e8a0c..b7dbea3e2f0aae1e7c0cfdb77dc0f468ac8510f9 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -6241,6 +6241,14 @@ other types of suffix sets.
   <summary>Coded width of HTML5 video.</summary>
 </histogram>
 
+<histogram name="Media.VideoColorRange" enum="FFmpegColorRanges">
+  <summary>Pixel format color range of HTML5 video.</summary>
+</histogram>
+
+<histogram name="Media.VideoPixelFormat" enum="VideoPixelFormat">
+  <summary>Pixel format of HTML5 video.</summary>
+</histogram>
+
 <histogram name="Media.VideoVisibleAspectRatio">
   <summary>Visible aspect ratio of HTML5 video.</summary>
 </histogram>
@@ -22827,6 +22835,12 @@ other types of suffix sets.
   <int value="1950507339" label="TAK"/>
 </enum>
 
+<enum name="FFmpegColorRanges" type="int">
+  <int value="0" label="UNSPECIFIED"/>
+  <int value="1" label="MPEG"/>
+  <int value="2" label="JPEG"/>
+</enum>
+
 <enum name="FileDialogType" type="int">
   <int value="0" label="Select folder"/>
   <int value="1" label="Save as file"/>
@@ -28113,6 +28127,18 @@ other types of suffix sets.
   <int value="12" label="VP9"/>
 </enum>
 
+<enum name="VideoPixelFormat" type="int">
+  <int value="0" label="INVALID"/>
+  <int value="4" label="RGB32"/>
+  <int value="6" label="YV12"/>
+  <int value="7" label="YV16"/>
+  <int value="9" label="EMPTY"/>
+  <int value="11" label="I420"/>
+  <int value="12" label="NATIVE_TEXTURE"/>
+  <int value="13" label="HOLE"/>
+  <int value="14" label="YV12A"/>
+</enum>
+
 <enum name="ViewFileType" type="int">
   <int value="0" label="other"/>
   <int value="1" label=".3ga"/>