[iOS][MF] Add histograms for autofill data types

Bug: 845472
Change-Id: I57c17eaa6add94d6defe8fea4e24c70bcb20af0b
Reviewed-on: https://chromium-review.googlesource.com/c/1329165
Commit-Queue: Javier Ernesto Flores Robles <javierrobles@chromium.org>
Reviewed-by: Steven Holte <holte@chromium.org>
Cr-Commit-Position: refs/heads/master@{#607950}

ios/chrome/browser/ui/autofill/manual_fill/address_view_controller.mm

@@ -5,6 +5,7 @@
 #import "ios/chrome/browser/ui/autofill/manual_fill/address_view_controller.h"
 
 #include "base/ios/ios_util.h"
+#include "base/metrics/histogram_macros.h"
 #import "ios/chrome/browser/ui/autofill/manual_fill/action_cell.h"
 #import "ios/chrome/browser/ui/table_view/chrome_table_view_styler.h"
 #include "ios/chrome/browser/ui/util/ui_util.h"
@@ -37,6 +38,8 @@ NSString* const AddressTableViewAccessibilityIdentifier =
 // TODO(crbug.com/845472): look at replacing ManualFillXXXConsumer with
 // ManualFillItemsConsumer.
 - (void)presentAddresses:(NSArray<ManualFillAddressItem*>*)addresses {
+  UMA_HISTOGRAM_COUNTS_100("ManualFallback.PresentedOptions.Profiles",
+                           addresses.count);
   [self presentDataItems:(NSArray<TableViewItem*>*)addresses];
 }
 

ios/chrome/browser/ui/autofill/manual_fill/card_view_controller.mm

@@ -5,6 +5,7 @@
 #import "ios/chrome/browser/ui/autofill/manual_fill/card_view_controller.h"
 
 #include "base/ios/ios_util.h"
+#include "base/metrics/histogram_macros.h"
 #import "ios/chrome/browser/ui/autofill/manual_fill/action_cell.h"
 #import "ios/chrome/browser/ui/table_view/chrome_table_view_styler.h"
 #include "ios/chrome/browser/ui/util/ui_util.h"
@@ -35,6 +36,8 @@ NSString* const CardTableViewAccessibilityIdentifier =
 #pragma mark - ManualFillCardConsumer
 
 - (void)presentCards:(NSArray<ManualFillCardItem*>*)cards {
+  UMA_HISTOGRAM_COUNTS_100("ManualFallback.PresentedOptions.CreditCards",
+                           cards.count);
   [self presentDataItems:(NSArray<TableViewItem*>*)cards];
 }
 

tools/metrics/histograms/histograms.xml

@@ -43152,6 +43152,15 @@ uploading your change for review.
   </summary>
 </histogram>
 
+<histogram name="ManualFallback.PresentedOptions.CreditCards" units="Cards"
+    expires_after="2019-12-31">
+  <owner>javierrobles@chromium.org</owner>
+  <summary>
+    Tracks the number of cards presented to the user in Manual Fallback. This is
+    logged everytime the user opens this view.
+  </summary>
+</histogram>
+
 <histogram name="ManualFallback.PresentedOptions.Passwords" units="Credentials"
     expires_after="2019-12-31">
   <owner>javierrobles@chromium.org</owner>
@@ -43161,6 +43170,15 @@ uploading your change for review.
   </summary>
 </histogram>
 
+<histogram name="ManualFallback.PresentedOptions.Profiles" units="Profiles"
+    expires_after="2019-12-31">
+  <owner>javierrobles@chromium.org</owner>
+  <summary>
+    Tracks the number of profiles presented to the user in Manual Fallback. This
+    is logged everytime the user opens this view.
+  </summary>
+</histogram>
+
 <histogram name="Media.AcceleratedCompositingActive" enum="BooleanSuccess">
   <obsolete>
     Deprecated as of July 21, 2014.