[Passwords] Include all Server Predictions in Internals Log

This change adds all server predictions to the log output in
chrome://password-manager-internals.

Before:
  Server predictions: {
  Signature of form: 8608767706003284200 - 193
  Origin: https://www.dkb.de/
  Action: https://www.dkb.de/
  Form fields:
  j_username: 94183295, type=text, renderer_id = 59, autocomplete=off,
    SERVER_PREDICTION: NAME_FULL
  j_password: 1796512061, type=password, renderer_id = 60, autocomplete=off,
    SERVER_PREDICTION: PASSWORD
  }

After:
  Server predictions: {
  Signature of form: 8608767706003284200 - 193
  Origin: https://www.dkb.de/
  Action: https://www.dkb.de/
  Form fields:
  j_username: 94183295, type=text, renderer_id = 31, autocomplete=off,
    Server Type: NAME_FULL, All Server Predictions: [NAME_FULL, USERNAME]
  j_password: 1796512061, type=password, renderer_id = 32, autocomplete=off,
    Server Type: PASSWORD, All Server Predictions: [PASSWORD]
  }

Bug: 1140493
Change-Id: I3a6e685e02e7d960d4df053cd1b9885c1f509a33
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2540610Reviewed-by: Vasilii Sukhanov <vasilii@chromium.org>
Commit-Queue: Jan Wilken Dörrie <jdoerrie@chromium.org>
Cr-Commit-Position: refs/heads/master@{#827836}

components/password_manager/core/browser/browser_save_password_progress_logger.cc

@@ -4,7 +4,9 @@
 
 #include "components/password_manager/core/browser/browser_save_password_progress_logger.h"
 
+#include <string>
 #include <utility>
+#include <vector>
 
 #include "base/strings/strcat.h"
 #include "base/strings/string_number_conversions.h"
@@ -22,6 +24,7 @@
 
 using autofill::AutofillUploadContents;
 using autofill::FieldPropertiesFlags;
+using autofill::FieldTypeToStringPiece;
 using autofill::FormStructure;
 using autofill::PasswordAttribute;
 using autofill::ServerFieldType;
@@ -208,16 +211,23 @@ std::string BrowserSavePasswordProgressLogger::FormStructureToFieldsLogString(
           ", autocomplete=" + ScrubElementID(field->autocomplete_attribute);
 
     if (field->server_type() != autofill::NO_SERVER_DATA) {
+      base::StrAppend(
+          &field_info,
+          {", Server Type: ", FieldTypeToStringPiece(field->server_type())});
+
+      std::vector<std::string> all_predictions;
+      for (const auto& p : field->server_predictions()) {
+        all_predictions.emplace_back(
+            FieldTypeToStringPiece(static_cast<ServerFieldType>(p.type())));
+      }
+
       base::StrAppend(&field_info,
-                      {", SERVER_PREDICTION: ",
-                       autofill::AutofillType::ServerFieldTypeToString(
-                           field->server_type())});
+                      {", All Server Predictions: [",
+                       base::JoinString(all_predictions, ", "), "]"});
     }
 
     for (ServerFieldType type : field->possible_types())
-      base::StrAppend(
-          &field_info,
-          {", VOTE: ", autofill::AutofillType::ServerFieldTypeToString(type)});
+      base::StrAppend(&field_info, {", VOTE: ", FieldTypeToStringPiece(type)});
 
     if (field->vote_type())
       field_info += ", vote_type=" + VoteTypeToString(field->vote_type());