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 22ea39517c626dd490c1216b8d92a18c1c58e3d6..df9189adbffe0dd72dfe4f71ef6c5159b630c2bc 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -10446,6 +10446,12 @@ other types of suffix sets.
   </summary>
 </histogram>
 
+<histogram name="PasswordManager.Enabled" enum="BooleanEnabled">
+  <summary>
+    Indicates whether the password manager is enabled when a tab being opened.

[Ilya Sherman, 2013/09/14 03:33:25]

nit: "when a tab being opened" -> "when a tab is opened".

[Ilya Sherman, 2013/09/14 03:33:25]

Please mention that this includes prerendered tabs.

+  </summary>
+</histogram>
+
 <histogram name="PasswordManager.OtherPossibleUsernamesUsage"
     enum="OtherPossibleUsernamesUsage">
   <summary>
@@ -10462,6 +10468,25 @@ other types of suffix sets.
   </summary>
 </histogram>
 
+<histogram name="PasswordManager.SavePasswordPromptDisappearedQuickly"
+    enum="Boolean">
+  <summary>
+    Indicates whether the save password prompt disappeared in less than one
+    second. This most likely indicates that the prompt was dismissed
+    automatically, e.g. due to a page navigation, before the user was able to
+    respond to the infobar.
+  </summary>
+</histogram>
+
+<histogram name="PasswordManager.SavePasswordPromptDisplayed" enum="Boolean">
+  <summary>Indicates whether the save password prompt is displayed.</summary>

[Ilya Sherman, 2013/09/14 03:33:25]

nit: "is" -> "was"

+</histogram>
+
+<histogram name="PasswordManager.SavePasswordPromptResponse"
+    enum="SavePasswordPromptResponseType">
+  <summary>Breakdown of responses offered by the save password prompt.</summary>

[Ilya Sherman, 2013/09/14 03:33:25]

Perhaps "Breakdown of which response the user selected from the save password
prompt."

+</histogram>
+
 <histogram name="PasswordManager.TimesGeneratedPasswordUsed">
   <summary>
     The number of times each generated password has been used to log in.
@@ -24193,6 +24218,12 @@ other types of suffix sets.
   </int>
 </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"/>
@@ -27439,6 +27470,25 @@ 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"/>