Update offline pages UMAs

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 4f2f7e36c8d786241213851ae01a392269c48a27..8cddcba4f358bd4dd40214eeba05757e6e3c7b08 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -34210,6 +34210,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 
 <histogram name="OfflinePages.Edit.BookmarkUrlChangedForOfflinePage"
     enum="BooleanMatched">
+  <obsolete>
+    Deprecated 5/2016. Offline pages no longer depend on bookmarks UI.
+  </obsolete>
   <owner>dougarnett@chromium.org</owner>
   <summary>
     Whether a user-edited bookmark URL had a saved offline page.
@@ -34217,6 +34220,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="OfflinePages.Filter.OnlineWhenEntering" enum="Boolean">
+  <obsolete>
+    Deprecated 5/2016. Offline pages no longer depend on bookmarks UI.
+  </obsolete>
   <owner>fgorski@chromium.org</owner>
   <owner>jianli@chromium.org</owner>
   <summary>
@@ -34226,6 +34232,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="OfflinePages.Filter.OnlineWhenLeaving" enum="Boolean">
+  <obsolete>
+    Deprecated 5/2016. Offline pages no longer depend on bookmarks UI.
+  </obsolete>
   <owner>fgorski@chromium.org</owner>
   <owner>jianli@chromium.org</owner>
   <summary>
@@ -34242,6 +34251,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="OfflinePages.IncognitoSave" enum="Boolean">
+  <obsolete>
+    Deprecated 5/2016. Not longer needed.
+  </obsolete>
   <owner>jianli@chromium.org</owner>
   <summary>
     Whether the page that was being saved offline was in incognito mode.
@@ -34249,6 +34261,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="OfflinePages.LaunchLocation" enum="StarsLaunchLocation">
+  <obsolete>
+    Deprecated 5/2016. Offline pages no longer depend on bookmarks UI.
+  </obsolete>
   <owner>fgorski@chromium.org</owner>
   <owner>jianli@chromium.org</owner>
   <summary>Logs a UI location from which an offline page is launched.</summary>
@@ -34289,12 +34304,18 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </histogram>
 
 <histogram name="OfflinePages.OfflinePageCount">
+  <obsolete>
+    Deprecated 5/2016. This was the dup of OfflinePages.SavedPageCount.
+  </obsolete>
   <owner>fgorski@chromium.org</owner>
   <owner>jianli@chromium.org</owner>
   <summary>Number of offline pages the user has. Android only.</summary>
 </histogram>
 
 <histogram name="OfflinePages.OnlineOnOpen" enum="Boolean">
+  <obsolete>
+    Deprecated 5/2016. Offline pages no longer depend on bookmarks UI.
+  </obsolete>
   <owner>jianli@chromium.org</owner>
   <summary>
     Whether the user was online when a saved page with offline copy was opened.
@@ -34378,6 +34399,14 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <summary>Whether a shared page was an offline page or not.</summary>
 </histogram>
 
+<histogram name="OfflinePages.ShowOfflinePageOnBadNetwork" enum="Boolean">
+  <owner>jianli@chromium.org</owner>
+  <summary>
+    Whether an offline page is shown, instead of error page, when the network is
+    disconnected or poor condition.
+  </summary>
+</histogram>
+
 <histogram name="OfflinePages.TotalPageSize" units="MB">
   <owner>fgorski@chromium.org</owner>
   <owner>jianli@chromium.org</owner>
@@ -92962,6 +92991,21 @@ To add a new entry, add it with any value and run test to compute valid value.
   <affected-histogram name="SBOffDomainInclusion2.Abort"/>
 </histogram_suffixes>
 
+<histogram_suffixes name="OfflinePagesNamespace" separator=".">
+  <suffix name="bookmark" label="Offline bookmark cache"/>
+  <suffix name="last-n" label="Offline recent pages"/>
+  <affected-histogram name="OfflinePages.DeletePage.AccessCount"/>
+  <affected-histogram name="OfflinePages.DeletePage.LastOpenToCreated"/>
+  <affected-histogram name="OfflinePages.DeletePage.PageSize"/>
+  <affected-histogram name="OfflinePages.DeletePage.TimeSinceLastOpen"/>
+  <affected-histogram name="OfflinePages.FirstOpenSinceCreated"/>
+  <affected-histogram name="OfflinePages.OpenSinceLastOpen"/>
+  <affected-histogram name="OfflinePages.PageLifetime"/>
+  <affected-histogram name="OfflinePages.PageSize"/>
+  <affected-histogram name="OfflinePages.SavePageResult"/>
+  <affected-histogram name="OfflinePages.SavePageTime"/>
+</histogram_suffixes>
+
 <histogram_suffixes name="OmniboxProviderTime" separator=".">
   <suffix name="Bookmark"/>
   <suffix name="Builtin"/>