[Password Generation] Sends form classifier vote to autofill server

chrome/renderer/autofill/password_generation_agent_browsertest.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <string.h>
 
 #include <memory>
 
 #include "base/macros.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 54 matching lines @@
         render_thread_->sink().GetFirstMessageMatching(
             AutofillHostMsg_ShowPasswordGenerationPopup::ID);
     if (available)
       ASSERT_TRUE(message);
     else
       ASSERT_FALSE(message);
 
     render_thread_->sink().ClearMessages();
   }
 
+  void ExpectFormClassifierVoteReceived(
+      const base::string16& expected_generation_element) {
+    const IPC::Message* message =
+        render_thread_->sink().GetFirstMessageMatching(
+            AutofillHostMsg_SaveGenerationFieldDetectedByClassifier::ID);
+    ASSERT_TRUE(message);
+    std::tuple<autofill::PasswordForm, base::string16> actual_parameters;
+    AutofillHostMsg_SaveGenerationFieldDetectedByClassifier::Read(
+        message, &actual_parameters);
+    EXPECT_EQ(expected_generation_element, std::get<1>(actual_parameters));
+    render_thread_->sink().ClearMessages();
+  }
+
   void ShowGenerationPopUpManually(const char* element_id) {
     FocusField(element_id);
     AutofillMsg_UserTriggeredGeneratePassword msg(0);
     static_cast<IPC::Listener*>(password_generation_)->OnMessageReceived(msg);
   }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(PasswordGenerationAgentTest);
 };
 
@@ skipping 555 matching lines @@
 
     for (size_t i = 0; i < password.length(); ++i)
       SimulateUserTypingASCIICharacter(ui::VKEY_BACK, false);
     SimulateUserTypingASCIICharacter(ui::VKEY_BACK, true);
     EXPECT_TRUE(render_thread_->sink().GetFirstMessageMatching(
         AutofillHostMsg_PasswordNoLongerGenerated::ID));
     render_thread_->sink().ClearMessages();
   }
 }
 
+TEST_F(PasswordGenerationAgentTest, FormClassifierVotesSignupForm) {
+  LoadHTMLWithUserGesture(kAccountCreationFormHTML);
+  ExpectFormClassifierVoteReceived(base::ASCIIToUTF16("first_password"));
+}
+
+TEST_F(PasswordGenerationAgentTest, FormClassifierVotesSigninForm) {
+  LoadHTMLWithUserGesture(kSigninFormHTML);
+  ExpectFormClassifierVoteReceived(base::string16());
+}
+
 }  // namespace autofill