Record whether a file picker specialized for media content can be used

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 d233eca6c49c1e1e0cd01fdc6d5bc17937ec984f..f56d6a9393288f338d5c1119d2483f3a382dacc4 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -751,6 +751,14 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   </summary>
 </histogram>
 
+<histogram name="Android.SelectFileDialogScope" enum="SelectFileDialogScope">
+  <owner>peter@chromium.org</owner>
+  <summary>
+    Records the scope of accepted content for a select file dialog when shown by
+    a Web developer.
+  </summary>
+</histogram>
+
 <histogram name="Android.StrictMode.CheckGooglePlayServicesTime" units="ms">
   <owner>wnwen@chromium.org</owner>
   <owner>yfriedman@chromium.org</owner>
@@ -104717,6 +104725,12 @@ value.
   <int value="11" label="SHOW_WHITEPAPER"/>
 </enum>
 
+<enum name="SelectFileDialogScope" type="int">
+  <int value="0" label="Generic file dialog"/>
+  <int value="1" label="Photo dialog"/>
+  <int value="2" label="Photh and video dialog"/>
+</enum>
+
 <enum name="ServiceProcessEventType" type="int">
   <int value="0" label="SERVICE_EVENT_INITIALIZE"/>
   <int value="1" label="SERVICE_EVENT_ENABLED_ON_LAUNCH"/>