Create PasswordProtectionRequest to handle password pings

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 ca14407d0cab0e86b8b06a9f200541714db2d733..dc923f68a528d33fd80043f713adfa06f6a5ace8 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -47634,6 +47634,54 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   </summary>
 </histogram>
 
+<histogram name="PasswordProtection.PasswordProtectionResponseOrErrorCode"
+    enum="CombinedHttpResponseAndNetErrorCode">
+  <owner>jialiul@chromium.org</owner>
+  <owner>nparker@chromium.org</owner>
+  <summary>
+    Response or error codes for PasswordProtectionRequest. Logged after chrome
+    receives response of PasswordProtectionRequest from Safe Browsing service.
+  </summary>
+</histogram>
+
+<histogram name="PasswordProtection.PasswordReuseEventVerdict"
+    enum="PasswordProtectionVerdict">
+  <owner>jialiul@chromium.org</owner>
+  <owner>nparker@chromium.org</owner>
+  <summary>
+    Verdict types returned by Safe Browsing server for password reuse events.
+  </summary>
+</histogram>
+
+<histogram name="PasswordProtection.RequestNetworkDuration" units="ms">
+  <owner>jialiul@chromium.org</owner>
+  <owner>nparker@chromium.org</owner>
+  <summary>
+    The time it takes for PasswordProtectionService request. It is not recorded
+    for requests that were canceled.
+  </summary>
+</histogram>
+
+<histogram name="PasswordProtection.RequestOutcome"
+    enum="PasswordProtectionRequestOutcome">
+  <owner>jialiul@chromium.org</owner>
+  <owner>nparker@chromium.org</owner>
+  <summary>
+    Records the outcome of the password protection request, indicating if
+    request is sent out successfully or if it is skipped or canceled for some
+    reason.
+  </summary>
+</histogram>
+
+<histogram name="PasswordProtection.UnfamiliarLoginPageVerdict"
+    enum="PasswordProtectionVerdict">
+  <owner>jialiul@chromium.org</owner>
+  <owner>nparker@chromium.org</owner>
+  <summary>
+    Verdict types returned by Safe Browsing server for unfamiliar login pages.
+  </summary>
+</histogram>
+
 <histogram
     name="PaymentRequest.CanMakePayment.NotUsed.WithShowEffectOnCompletion"
     enum="PaymentRequestFlowCompletionStatus">
@@ -105226,6 +105274,28 @@ from previous Chrome versions.
   <int value="12" label="Clicked the link passwords.google.com"/>
 </enum>
 
+<enum name="PasswordProtectionRequestOutcome" type="int">
+  <int value="0" label="Unknown"/>
+  <int value="1" label="Succeeded"/>
+  <int value="2" label="Canceled"/>
+  <int value="3" label="Timed out"/>
+  <int value="4" label="Matched whitelist"/>
+  <int value="5" label="Response already cached"/>
+  <int value="6" label="Not extended reporting user"/>
+  <int value="7" label="Incognito"/>
+  <int value="8" label="Request malformed"/>
+  <int value="9" label="Fetch failed"/>
+  <int value="10" label="Response malformed"/>
+  <int value="11" label="Service destroyed"/>
+</enum>
+
+<enum name="PasswordProtectionVerdict" type="int">
+  <int value="0" label="Verdict not specified"/>
+  <int value="1" label="Safe"/>
+  <int value="2" label="Low reputation"/>
+  <int value="3" label="Phishing"/>
+</enum>
+
 <enum name="PasswordReusePasswordFieldDetected" type="int">
   <int value="0" label="No password field"/>
   <int value="1" label="Has password field"/>