[Autofill] Migrate ContentAutofillDriver<-->AutofillAgent IPCs to mojo.

chrome/renderer/autofill/autofill_renderer_browsertest.cc

Index: chrome/renderer/autofill/autofill_renderer_browsertest.cc
diff --git a/chrome/renderer/autofill/autofill_renderer_browsertest.cc b/chrome/renderer/autofill/autofill_renderer_browsertest.cc
index ead2cf8784e154147e025cd65e59bba79f854d6e..eee167a8d980523bedc3299b9a52eb838d7140ec 100644
--- a/chrome/renderer/autofill/autofill_renderer_browsertest.cc
+++ b/chrome/renderer/autofill/autofill_renderer_browsertest.cc
@@ -12,12 +12,15 @@
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/test/base/chrome_render_view_test.h"
 #include "chrome/test/base/ui_test_utils.h"
-#include "components/autofill/content/common/autofill_messages.h"
+#include "components/autofill/content/public/interfaces/autofill_driver.mojom.h"
 #include "components/autofill/content/renderer/autofill_agent.h"
 #include "components/autofill/core/common/form_data.h"
 #include "components/autofill/core/common/form_field_data.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/renderer/render_frame.h"
+#include "content/public/renderer/render_view.h"
+#include "mojo/public/cpp/bindings/binding_set.h"
+#include "services/shell/public/cpp/interface_provider.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/WebKit/public/platform/WebString.h"
 #include "third_party/WebKit/public/platform/WebURLRequest.h"
@@ -41,19 +44,109 @@ using blink::WebVector;
 
 namespace autofill {
 
+namespace {
+
+class FakeContentAutofillDriver : public mojom::AutofillDriver {
+ public:
+  FakeContentAutofillDriver() : called_field_change_(false) {}
+  ~FakeContentAutofillDriver() override {}
+
+  void BindRequest(mojom::AutofillDriverRequest request) {
+    bindings_.AddBinding(this, std::move(request));
+  }
+
+  bool called_field_change() const { return called_field_change_; }
+
+  const std::vector<FormData>* forms() const { return forms_.get(); }
+
+  void reset_forms() { return forms_.reset(); }
+
+ private:
+  // mojom::AutofillDriver:
+  void FirstUserGestureObserved() override {}
+
+  void FormsSeen(mojo::Array<FormData> forms,
+                 base::TimeTicks timestamp) override {
+    // FormsSeen() could be called multiple times and sometimes even with empty
+    // forms array for main frame, but we're interested in only the first time
+    // call.
+    if (!forms_)
+      forms_.reset(new std::vector<FormData>(forms.PassStorage()));
+  }
+
+  void WillSubmitForm(const FormData& form,
+                      base::TimeTicks timestamp) override {}
+
+  void FormSubmitted(const FormData& form) override {}
+
+  void TextFieldDidChange(const FormData& form,
+                          const FormFieldData& field,
+                          base::TimeTicks timestamp) override {
+    called_field_change_ = true;
+  }
+
+  void QueryFormFieldAutofill(int32_t id,
+                              const FormData& form,
+                              const FormFieldData& field,
+                              const gfx::RectF& bounding_box) override {}
+
+  void HidePopup() override {}
+
+  void PingAck() override {}
+
+  void FocusNoLongerOnForm() override {}
+
+  void DidFillAutofillFormData(const FormData& form,
+                               base::TimeTicks timestamp) override {}
+
+  void DidPreviewAutofillFormData() override {}
+
+  void DidEndTextFieldEditing() override {}
+
+  void SetDataList(mojo::Array<mojo::String> values,
+                   mojo::Array<mojo::String> labels) override {}
+
+  // Records whether TextFieldDidChange() get called.
+  bool called_field_change_;
+  // Records data received via FormSeen() call.
+  std::unique_ptr<std::vector<FormData>> forms_;
+
+  mojo::BindingSet<mojom::AutofillDriver> bindings_;
+};
+
+}  // namespace
+
 using AutofillQueryParam =
     std::tuple<int, autofill::FormData, autofill::FormFieldData, gfx::RectF>;
 
 class AutofillRendererTest : public ChromeRenderViewTest {
  public:
   AutofillRendererTest() {}
+
   ~AutofillRendererTest() override {}
 
  protected:
   void SetUp() override {
     ChromeRenderViewTest::SetUp();
+
+    // We only use the fake driver for main frame
+    // because our test cases only involve the main frame.
+    shell::InterfaceProvider* remote_interfaces =
+        view_->GetMainRenderFrame()->GetRemoteInterfaces();
+    shell::InterfaceProvider::TestApi test_api(remote_interfaces);
+    test_api.SetBinderForName(
+        mojom::AutofillDriver::Name_,
+        base::Bind(&AutofillRendererTest::BindAutofillDriver,
+                   base::Unretained(this)));
+  }
+
+  void BindAutofillDriver(mojo::ScopedMessagePipeHandle handle) {
+    fake_driver_.BindRequest(
+        mojo::MakeRequest<mojom::AutofillDriver>(std::move(handle)));
   }
 
+  FakeContentAutofillDriver fake_driver_;
+
  private:
   DISALLOW_COPY_AND_ASSIGN(AutofillRendererTest);
 };
@@ -71,13 +164,11 @@ TEST_F(AutofillRendererTest, SendForms) {
            "  </select>"
            "</form>");
 
+  base::RunLoop run_loop;
+  run_loop.RunUntilIdle();
   // Verify that "FormsSeen" sends the expected number of fields.
-  const IPC::Message* message = render_thread_->sink().GetFirstMessageMatching(
-      AutofillHostMsg_FormsSeen::ID);
-  ASSERT_NE(nullptr, message);
-  AutofillHostMsg_FormsSeen::Param params;
-  AutofillHostMsg_FormsSeen::Read(message, &params);
-  std::vector<FormData> forms = std::get<0>(params);
+  ASSERT_TRUE(fake_driver_.forms());
+  std::vector<FormData> forms = *(fake_driver_.forms());
   ASSERT_EQ(1UL, forms.size());
   ASSERT_EQ(4UL, forms[0].fields.size());
 
@@ -109,7 +200,7 @@ TEST_F(AutofillRendererTest, SendForms) {
   expected.max_length = 0;
   EXPECT_FORM_FIELD_DATA_EQUALS(expected, forms[0].fields[3]);
 
-  render_thread_->sink().ClearMessages();
+  fake_driver_.reset_forms();
 
   // Dynamically create a new form. A new message should be sent for it, but
   // not for the previous form.
@@ -136,11 +227,8 @@ TEST_F(AutofillRendererTest, SendForms) {
       "document.body.appendChild(newForm);");
 
   WaitForAutofillDidAssociateFormControl();
-  message = render_thread_->sink().GetFirstMessageMatching(
-      AutofillHostMsg_FormsSeen::ID);
-  ASSERT_NE(nullptr, message);
-  AutofillHostMsg_FormsSeen::Read(message, &params);
-  forms = std::get<0>(params);
+  ASSERT_TRUE(fake_driver_.forms());
+  forms = *(fake_driver_.forms());
   ASSERT_EQ(1UL, forms.size());
   ASSERT_EQ(3UL, forms[0].fields.size());
 
@@ -166,13 +254,11 @@ TEST_F(AutofillRendererTest, EnsureNoFormSeenIfTooFewFields) {
            "  <input type='text' id='middlename'/>"
            "</form>");
 
+  base::RunLoop run_loop;
+  run_loop.RunUntilIdle();
   // Verify that "FormsSeen" isn't sent, as there are too few fields.
-  const IPC::Message* message = render_thread_->sink().GetFirstMessageMatching(
-      AutofillHostMsg_FormsSeen::ID);
-  ASSERT_NE(nullptr, message);
-  AutofillHostMsg_FormsSeen::Param params;
-  AutofillHostMsg_FormsSeen::Read(message, &params);
-  const std::vector<FormData>& forms = std::get<0>(params);
+  ASSERT_TRUE(fake_driver_.forms());
+  const std::vector<FormData>& forms = *(fake_driver_.forms());
   ASSERT_EQ(0UL, forms.size());
 }
 
@@ -199,26 +285,21 @@ TEST_F(AutofillRendererTest, DynamicallyAddedUnownedFormElements) {
   ASSERT_TRUE(base::ReadFileToString(test_path, &html_data));
   LoadHTML(html_data.c_str());
 
+  base::RunLoop run_loop;
+  run_loop.RunUntilIdle();
   // Verify that "FormsSeen" sends the expected number of fields.
-  const IPC::Message* message = render_thread_->sink().GetFirstMessageMatching(
-      AutofillHostMsg_FormsSeen::ID);
-  ASSERT_NE(nullptr, message);
-  AutofillHostMsg_FormsSeen::Param params;
-  AutofillHostMsg_FormsSeen::Read(message, &params);
-  std::vector<FormData> forms = std::get<0>(params);
+  ASSERT_TRUE(fake_driver_.forms());
+  std::vector<FormData> forms = *(fake_driver_.forms());
   ASSERT_EQ(1UL, forms.size());
   ASSERT_EQ(7UL, forms[0].fields.size());
 
-  render_thread_->sink().ClearMessages();
+  fake_driver_.reset_forms();
 
   ExecuteJavaScriptForTests("AddFields()");
 
   WaitForAutofillDidAssociateFormControl();
-  message = render_thread_->sink().GetFirstMessageMatching(
-      AutofillHostMsg_FormsSeen::ID);
-  ASSERT_NE(nullptr, message);
-  AutofillHostMsg_FormsSeen::Read(message, &params);
-  forms = std::get<0>(params);
+  ASSERT_TRUE(fake_driver_.forms());
+  forms = *(fake_driver_.forms());
   ASSERT_EQ(1UL, forms.size());
   ASSERT_EQ(9UL, forms[0].fields.size());
 
@@ -250,17 +331,16 @@ TEST_F(AutofillRendererTest, IgnoreNonUserGestureTextFieldChanges) {
 
   // Not a user gesture, so no IPC message to browser.
   DisableUserGestureSimulationForAutofill();
+  ASSERT_FALSE(fake_driver_.called_field_change());
   full_name.setValue("Alice", true);
   GetMainFrame()->autofillClient()->textFieldDidChange(full_name);
   base::RunLoop().RunUntilIdle();
-  ASSERT_EQ(nullptr, render_thread_->sink().GetFirstMessageMatching(
-                         AutofillHostMsg_TextFieldDidChange::ID));
+  ASSERT_FALSE(fake_driver_.called_field_change());
 
   // A user gesture will send a message to the browser.
   EnableUserGestureSimulationForAutofill();
   SimulateUserInputChangeForElement(&full_name, "Alice");
-  ASSERT_NE(nullptr, render_thread_->sink().GetFirstMessageMatching(
-                         AutofillHostMsg_TextFieldDidChange::ID));
+  ASSERT_TRUE(fake_driver_.called_field_change());
 }
 
 }  // namespace autofill