Move GetDocument method from WebFrame to WebLocalFrame.

third_party/WebKit/public/web/WebLocalFrame.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef WebLocalFrame_h
 #define WebLocalFrame_h
 
 #include <memory>
 #include <set>
 
@@ skipping 14 matching lines @@
 namespace blink {
 
 class InterfaceProvider;
 class InterfaceRegistry;
 class WebAutofillClient;
 class WebContentSettingsClient;
 class WebData;
 class WebDataSource;
 class WebDevToolsAgent;
 class WebDevToolsAgentClient;
+class WebDocument;
 class WebDoubleSize;
 class WebDOMEvent;
 class WebFrameClient;
 class WebFrameWidget;
 class WebFrameScheduler;
 class WebInputMethodController;
 class WebRange;
 class WebSecurityOrigin;
 class WebScriptExecutionCallback;
 class WebSharedWorkerRepositoryClient;
@@ skipping 86 matching lines @@
   virtual void DispatchUnloadEvent() = 0;
 
   // Basic properties ---------------------------------------------------
 
   // The urls of the given combination types of favicon (if any) specified by
   // the document loaded in this frame. The iconTypesMask is a bit-mask of
   // WebIconURL::Type values, used to select from the available set of icon
   // URLs
   virtual WebVector<WebIconURL> IconURLs(int icon_types_mask) const = 0;
 
+  virtual WebDocument GetDocument() const = 0;
+
   // Hierarchy ----------------------------------------------------------
 
   // Get the highest-level LocalFrame in this frame's in-process subtree.
   virtual WebLocalFrame* LocalRoot() = 0;
 
   // Returns the frame identified by the given name.  This method supports
   // pseudo-names like _self, _top, and _blank and otherwise performs the same
   // kind of lookup what |window.open(..., name)| would in Javascript.
   virtual WebFrame* FindFrameByName(const WebString& name) = 0;
 
@@ skipping 595 matching lines @@
   // to call these on a WebLocalFrame.
   bool IsWebLocalFrame() const override = 0;
   WebLocalFrame* ToWebLocalFrame() override = 0;
   bool IsWebRemoteFrame() const override = 0;
   WebRemoteFrame* ToWebRemoteFrame() override = 0;
 };
 
 }  // namespace blink
 
 #endif  // WebLocalFrame_h