Remove unnecessary uses of HTMLDocument

third_party/WebKit/Source/core/html/HTMLFormControlElementTest.cpp

Index: third_party/WebKit/Source/core/html/HTMLFormControlElementTest.cpp
diff --git a/third_party/WebKit/Source/core/html/HTMLFormControlElementTest.cpp b/third_party/WebKit/Source/core/html/HTMLFormControlElementTest.cpp
index 1f9acf5e67de34fd4a931f098d3a0fe84ebc350d..0433b8c1ba264a884e3c4052c455c34a137094e7 100644
--- a/third_party/WebKit/Source/core/html/HTMLFormControlElementTest.cpp
+++ b/third_party/WebKit/Source/core/html/HTMLFormControlElementTest.cpp
@@ -4,8 +4,8 @@
 
 #include "core/html/HTMLFormControlElement.h"
 
+#include "core/dom/Document.h"
 #include "core/frame/FrameView.h"
-#include "core/html/HTMLDocument.h"
 #include "core/html/HTMLInputElement.h"
 #include "core/layout/LayoutObject.h"
 #include "core/loader/EmptyClients.h"
@@ -20,11 +20,11 @@ protected:
     void SetUp() override;
 
     DummyPageHolder& page() const { return *m_dummyPageHolder; }
-    HTMLDocument& document() const { return *m_document; }
+    Document& document() const { return *m_document; }
 
 private:
     std::unique_ptr<DummyPageHolder> m_dummyPageHolder;
-    Persistent<HTMLDocument> m_document;
+    Persistent<Document> m_document;
 };
 
 void HTMLFormControlElementTest::SetUp()
@@ -33,7 +33,7 @@ void HTMLFormControlElementTest::SetUp()
     fillWithEmptyClients(pageClients);
     m_dummyPageHolder = DummyPageHolder::create(IntSize(800, 600), &pageClients);
 
-    m_document = toHTMLDocument(&m_dummyPageHolder->document());
+    m_document = &m_dummyPageHolder->document();
     m_document->setMimeType("text/html");
 }