Recording download mime types for normal profile

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 71c65a7709a050c05e316c45e6510a9e3726ee60..11e70a76ddda416c4b4d2a3b3b402f51874e100e 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -13217,6 +13217,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="Download.ContentType" enum="DownloadContentType">
+  <obsolete>
+    Deprecated 03/2017, and replaced by Download.Start.ContentType.
+  </obsolete>
   <owner>asanka@chromium.org</owner>
   <summary>Content types that are downloaded.</summary>
 </histogram>
@@ -13762,6 +13765,19 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   </summary>
 </histogram>
 
+<histogram name="Download.Start.ContentType" enum="DownloadContentType">
+  <owner>shaktisahu@chromium.org</owner>
+  <summary>Content types of the downloads.</summary>
+</histogram>
+
+<histogram name="Download.Start.ContentType.NormalProfile"
+    enum="DownloadContentType">
+  <owner>shaktisahu@chromium.org</owner>
+  <summary>
+    Content types of the downloads that are started in non-incognito profile.
+  </summary>
+</histogram>
+
 <histogram name="Download.TargetConnectionSecurity"
     enum="DownloadConnectionSecurity">
   <owner>jialiul@chromium.org</owner>
@@ -87880,6 +87896,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <int value="16" label="No WebContents at interruption"/>
   <int value="17" label="Supports ranges and strong validation"/>
   <int value="18" label="Uses parallel requests"/>
+  <int value="19" label="New downloads"/>
+  <int value="20" label="New downloads (normal profile only)"/>
+  <int value="21" label="Completed (normal profile only)"/>
 </enum>
 
 <enum name="DownloadDatabaseRecordDroppedType" type="int">