Removed -[CRWWebDelegate webController:titleDidChange:].

ios/web/web_state/web_state_impl_unittest.mm

Index: ios/web/web_state/web_state_impl_unittest.mm
diff --git a/ios/web/web_state/web_state_impl_unittest.mm b/ios/web/web_state/web_state_impl_unittest.mm
index 992132f9f2dbc2eb5afb9ca6c315292d65e3df37..4b9ab13103e353cb90e11b13a32a66b9da381779 100644
--- a/ios/web/web_state/web_state_impl_unittest.mm
+++ b/ios/web/web_state/web_state_impl_unittest.mm
@@ -130,6 +130,7 @@ class TestWebStateObserver : public WebStateObserver {
         url_hash_changed_called_(false),
         history_state_changed_called_(false),
         did_finish_navigation_called_(false),
+        title_was_set_called_(false),
         web_state_destroyed_called_(false) {}
 
   // Methods returning true if the corresponding WebStateObserver method has
@@ -156,6 +157,7 @@ class TestWebStateObserver : public WebStateObserver {
   bool did_finish_navigation_called() const {
     return did_finish_navigation_called_;
   }
+  bool title_was_set_called() const { return title_was_set_called_; }
   bool web_state_destroyed_called() const {
     return web_state_destroyed_called_;
   }
@@ -184,6 +186,7 @@ class TestWebStateObserver : public WebStateObserver {
   }
   void UrlHashChanged() override { url_hash_changed_called_ = true; }
   void HistoryStateChanged() override { history_state_changed_called_ = true; }
+  void TitleWasSet() override { title_was_set_called_ = true; }
   void WebStateDestroyed() override {
     EXPECT_TRUE(web_state()->IsBeingDestroyed());
     web_state_destroyed_called_ = true;
@@ -198,6 +201,7 @@ class TestWebStateObserver : public WebStateObserver {
   bool url_hash_changed_called_;
   bool history_state_changed_called_;
   bool did_finish_navigation_called_;
+  bool title_was_set_called_;
   bool web_state_destroyed_called_;
 };
 
@@ -414,6 +418,11 @@ TEST_F(WebStateTest, ObserverTest) {
   web_state_->OnErrorPageNavigation(GURL("http://test"));
   EXPECT_TRUE(observer->did_finish_navigation_called());
 
+  // Test that OnTitleChanged() is called.
+  EXPECT_FALSE(observer->title_was_set_called());
+  web_state_->OnTitleChanged();
+  EXPECT_TRUE(observer->title_was_set_called());
+
   // Test that WebStateDestroyed() is called.
   EXPECT_FALSE(observer->web_state_destroyed_called());
   web_state_.reset();