Added of new UMA signals in order to be able to discover early if the "save password" feature gets …

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 0e2a0dd6bd7977356b482afefa9d8223fc91cb0f..a2c9ee5a16e869ebd159ca626ecae9dfb60b799e 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -10439,6 +10439,13 @@ other types of suffix sets.
   </summary>
 </histogram>
 
+<histogram name="PasswordManager.Enabled" enum="BooleanEnabled">
+  <summary>
+    Indicates if the password manager is enable when PasswordManagers are
+    constructed.
+  </summary>
+</histogram>
+
 <histogram name="PasswordManager.OtherPossibleUsernamesUsage"
     enum="OtherPossibleUsernamesUsage">
   <summary>
@@ -10455,6 +10462,24 @@ other types of suffix sets.
   </summary>
 </histogram>
 
+<histogram name="PasswordManager.SavePasswordPromptDisappearedQuickly"
+    enum="Boolean">
+  <summary>
+    Indicates if the save password prompt disappeared without the user was able
+    to do a choice.
+  </summary>
+</histogram>
+
+<histogram name="PasswordManager.SavePasswordPromptDisplayed"
+    enum="SavePasswordPromptDisplayedEnum">
+  <summary>Indicates that the save password prompt is displayed.</summary>
+</histogram>
+
+<histogram name="PasswordManager.SavePasswordPromptResponse"
+    enum="SavePasswordPromptResponseType">
+  <summary>Breakdown of responses offered by the save password prompt.</summary>
+</histogram>
+
 <histogram name="PasswordManager.TimesGeneratedPasswordUsed">
   <summary>
     The number of times each generated password has been used to log in.
@@ -24051,6 +24076,16 @@ other types of suffix sets.
   </int>
 </enum>
 
+<enum name="SavePasswordPromptDisplayedEnum" type="int">
+  <int value="0" label="SAVE_PASSWORD_PROMPT_DISPLAYED"/>
+</enum>
+
+<enum name="SavePasswordPromptResponseType" type="int">
+  <int value="0" label="NO_RESPONSE"/>
+  <int value="1" label="REMEMBER_PASSWORD"/>
+  <int value="2" label="DONT_REMEMBER_PASSWORD"/>
+</enum>
+
 <enum name="SB2BloomFailure" type="int">
   <int value="0" label="READ_OPEN"/>
   <int value="1" label="READ_VERSION"/>
@@ -27282,6 +27317,25 @@ other types of suffix sets.
   <affected-histogram name="Renderer4.BeginToFinishDoc"/>
 </fieldtrial>
 
+<fieldtrial name="PasswordManagerMonitor">
+  <group name="bucket_1" label="bucket 1"/>
+  <group name="bucket_2" label="bucket 2"/>
+  <group name="bucket_3" label="bucket 3"/>
+  <group name="bucket_4" label="bucket 4"/>
+  <group name="bucket_5" label="bucket 5"/>
+  <group name="bucket_6" label="bucket 6"/>
+  <group name="bucket_7" label="bucket 7"/>
+  <group name="bucket_8" label="bucket 8"/>
+  <group name="bucket_9" label="bucket 9"/>
+  <group name="bucket_10" label="bucket 10"/>
+  <group name="" label=""/>
+  <affected-histogram name="PasswordManager.ProvisionalSaveFailure"/>
+  <affected-histogram
+      name="PasswordManager.SavePasswordPromptDisappearedQuickly"/>
+  <affected-histogram name="PasswordManager.SavePasswordPromptDisplayed"/>
+  <affected-histogram name="PasswordManager.SavePasswordPromptResponse"/>
+</fieldtrial>
+
 <fieldtrial name="PpapiPluginName">
   <group name="libpepflashplayer.so" label="Flash player on Linux or Cros"/>
   <group name="libwidevinecdmadapter.so" label="Widevine CDM on Linux or Cros"/>