Adding UMA statistics for multi 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 56cefde47c04a6f1252816e5f745b87e3031a35d..d3ea06fbd2de338a78def6f842b19afbb9383373 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -6806,6 +6806,10 @@ other types of suffix sets.
   </summary>
 </histogram>
 
+<histogram name="MultiProfile.SessionMode" enum="MultiProfileSessionMode">
+  <summary>The session counter for different multi profile modes.</summary>

[Mark P, 2013/10/31 21:36:20]

Please say that in the summary.

[Mr4D (OOO till 08-26), 2013/10/31 21:51:49]

Done.

+</histogram>
+
 <histogram name="MultiProfile.SigninUserUIPath"
     enum="MultiProfileSigninUserAction">
   <summary>
@@ -6824,6 +6828,14 @@ other types of suffix sets.
   </summary>
 </histogram>
 
+<histogram name="MultiProfile.TeleportWindow"
+    enum="MultiProfileTeleportWindowAction">
+  <summary>
+    Counts the number of window teleportations when using separated desktop
+    mode.
+  </summary>
+</histogram>
+
 <histogram name="Multiprofile.UserCount">
   <summary>
     The number of users simultaneously signed into a multiprofile session on
@@ -24756,6 +24768,12 @@ other types of suffix sets.
   <int value="9" label="OPUS"/>
 </enum>
 
+<enum name="MultiProfileSessionMode" type="int">
+  <int value="0" label="Single user mode"/>
+  <int value="1" label="Side by side mode"/>
+  <int value="2" label="Separate desktop mode"/>
+</enum>
+
 <enum name="MultiProfileSigninUserAction" type="int">
   <int value="0" label="System tray"/>
   <int value="1" label="Browser frame"/>
@@ -24766,6 +24784,13 @@ other types of suffix sets.
   <int value="1" label="Keyboard accelerator"/>
 </enum>
 
+<enum name="MultiProfileTeleportWindowAction" type="int">
+  <int value="0" label="Drag and drop"/>
+  <int value="1" label="Caption context menu"/>
+  <int value="2" label="Return by minimize"/>
+  <int value="3" label="Return by launcher"/>
+</enum>
+
 <enum name="NavigationScheme" type="int">
   <int value="0" label="(Unknown)"/>
   <int value="1" label="http"/>