Add delay to didAssociateFormControlsTimer so it doesn't fire too frequently

chrome/test/base/chrome_render_view_test.cc

Index: chrome/test/base/chrome_render_view_test.cc
diff --git a/chrome/test/base/chrome_render_view_test.cc b/chrome/test/base/chrome_render_view_test.cc
index 44964164c1ae9b1e2aacfc660c0d4cbb46fb5690..acd14925db7b0ca5d8f042363f605f40ac8dc98b 100644
--- a/chrome/test/base/chrome_render_view_test.cc
+++ b/chrome/test/base/chrome_render_view_test.cc
@@ -69,9 +69,25 @@ class MockAutofillAgent : public AutofillAgent {
 
   ~MockAutofillAgent() override {}
 
+  void WaitForAutofillDidAssociateFormControl() {
+    DCHECK(run_loop_ == nullptr);
+    run_loop_.reset(new base::RunLoop);
+    run_loop_->Run();
+    run_loop_.reset();
+  }
+
   MOCK_CONST_METHOD0(IsUserGesture, bool());
 
  private:
+  void didAssociateFormControls(
+      const blink::WebVector<blink::WebNode>& nodes) override {
+    AutofillAgent::didAssociateFormControls(nodes);
+    if (run_loop_)
+      run_loop_->Quit();
+  }
+
+  std::unique_ptr<base::RunLoop> run_loop_;
+
   DISALLOW_COPY_AND_ASSIGN(MockAutofillAgent);
 };
 
@@ -165,3 +181,8 @@ void ChromeRenderViewTest::DisableUserGestureSimulationForAutofill() {
   EXPECT_CALL(*(static_cast<MockAutofillAgent*>(autofill_agent_)),
               IsUserGesture()).WillRepeatedly(Return(false));
 }
+
+void ChromeRenderViewTest::WaitForAutofillDidAssociateFormControl() {
+  static_cast<MockAutofillAgent*>(autofill_agent_)
+      ->WaitForAutofillDidAssociateFormControl();
+}