[reland] Move navigation-induced hiding of form-validation-bubble to the browser process.

third_party/WebKit/Source/core/dom/DocumentTest.cpp

Index: third_party/WebKit/Source/core/dom/DocumentTest.cpp
diff --git a/third_party/WebKit/Source/core/dom/DocumentTest.cpp b/third_party/WebKit/Source/core/dom/DocumentTest.cpp
index 6ebc46890eeef4d90d98152d69f39b9e2ec812a1..e36b19530bc49b20e03a2431116ac56a3bd9df4e 100644
--- a/third_party/WebKit/Source/core/dom/DocumentTest.cpp
+++ b/third_party/WebKit/Source/core/dom/DocumentTest.cpp
@@ -294,11 +294,9 @@ class MockValidationMessageClient
   MockValidationMessageClient() { Reset(); }
   void Reset() {
     show_validation_message_was_called = false;
-    will_unload_document_was_called = false;
     document_detached_was_called = false;
   }
   bool show_validation_message_was_called;
-  bool will_unload_document_was_called;
   bool document_detached_was_called;
 
   // ValidationMessageClient functions.
@@ -313,9 +311,6 @@ class MockValidationMessageClient
   bool IsValidationMessageVisible(const Element& anchor) override {
     return true;
   }
-  void WillUnloadDocument(const Document&) override {
-    will_unload_document_was_called = true;
-  }
   void DocumentDetached(const Document&) override {
     document_detached_was_called = true;
   }
@@ -826,7 +821,6 @@ TEST_F(DocumentTest, ValidationMessageCleanup) {
 
   // prepareForCommit() unloads the document, and shutdown.
   GetDocument().GetFrame()->PrepareForCommit();
-  EXPECT_TRUE(mock_client->will_unload_document_was_called);
   EXPECT_TRUE(mock_client->document_detached_was_called);
   // Unload handler tried to show a validation message, but it should fail.
   EXPECT_FALSE(mock_client->show_validation_message_was_called);