PasswordAutofillAgentTest.InlineAutocomplete depends on details of style recalc timing

chrome/renderer/autofill/password_autofill_agent_browsertest.cc

Index: chrome/renderer/autofill/password_autofill_agent_browsertest.cc
diff --git a/chrome/renderer/autofill/password_autofill_agent_browsertest.cc b/chrome/renderer/autofill/password_autofill_agent_browsertest.cc
index f5eed742853dcf79613ca2e49a01e40f566f2c0c..6a64f21860e68749608af881b31522c0596907a7 100644
--- a/chrome/renderer/autofill/password_autofill_agent_browsertest.cc
+++ b/chrome/renderer/autofill/password_autofill_agent_browsertest.cc
@@ -262,11 +262,23 @@ class PasswordAutofillAgentTest : public ChromeRenderViewTest {
     if (move_caret_to_end)
       username_input.setSelectionRange(username.length(), username.length());
     autofill_agent_->textFieldDidChange(username_input);
-    // Processing is delayed because of a WebKit bug, see
-    // PasswordAutocompleteManager::TextDidChangeInTextField() for details.
+    // Processing is delayed because of a Blink bug:
+    // https://bugs.webkit.org/show_bug.cgi?id=16976
+    // See PasswordAutofillAgent::TextDidChangeInTextField() for details.
+
+    // Autocomplete will trigger a style recalculation when we put up the next
+    // frame, but we don't want to wait that long. Instead, trigger a style
+    // recalcuation manually after TextFieldDidChangeImpl runs.
+    base::MessageLoop::current()->PostTask(FROM_HERE, base::Bind(
+        &PasswordAutofillAgentTest::LayoutMainFrame, base::Unretained(this)));
+
     base::MessageLoop::current()->RunUntilIdle();
   }
 
+  void LayoutMainFrame() {
+    GetMainFrame()->view()->layout();
+  }
+
   void SimulateUsernameChange(const std::string& username,
                               bool move_caret_to_end) {
     SimulateUsernameChangeForElement(username, move_caret_to_end,