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 68994cc4d6f63fc973c6ec1d9f11466b48ff17b0..1db6f6390e4626954c728f853c34d51a58ae3b1d 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);
 };
 
@@ -160,3 +176,8 @@ void ChromeRenderViewTest::DisableUserGestureSimulationForAutofill() {
   EXPECT_CALL(*(static_cast<MockAutofillAgent*>(autofill_agent_)),
               IsUserGesture()).WillRepeatedly(Return(false));
 }
+
+void ChromeRenderViewTest::WaitForAutofillDidAssociateFormControl() {
+  static_cast<MockAutofillAgent*>(autofill_agent_)
+      ->WaitForAutofillDidAssociateFormControl();
+}