Split WebLocalFrame into a distinct subclass of WebFrame.

public/web/WebFrame.h

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 45 matching lines @@
 namespace blink {
 
 class WebData;
 class WebDataSource;
 class WebDocument;
 class WebElement;
 class WebFormElement;
 class WebFrameClient;
 class WebInputElement;
 class WebLayer;
+class WebLocalFrame;
 class WebPerformance;
 class WebPermissionClient;
 class WebRange;
 class WebSecurityOrigin;
 class WebSharedWorkerRepositoryClient;
 class WebString;
 class WebURL;
 class WebURLLoader;
 class WebURLRequest;
 class WebView;
 struct WebConsoleMessage;
 struct WebFindOptions;
 struct WebFloatPoint;
 struct WebFloatRect;
 struct WebPoint;
 struct WebPrintParams;
 struct WebRect;
 struct WebScriptSource;
 struct WebSize;
 struct WebURLLoaderOptions;
 
 template <typename T> class WebVector;
 
-typedef class WebFrame WebLocalFrame;
-
+// Frames may be rendered in process ('local') or out of process ('remote').
+// A remote frame is always cross-site; a local frame may be either same-site or
+// cross-site.
+// WebFrame is the base class for both WebLocalFrame and WebRemoteFrame and
+// contains methods that are valid on both local and remote frames, such as
+// getting a frame's parent or its opener.
 class WebFrame {
 public:
     // Control of renderTreeAsText output
     enum RenderAsTextControl {
         RenderAsTextNormal = 0,
         RenderAsTextDebug = 1 << 0,
         RenderAsTextPrinting = 1 << 1
     };
     typedef unsigned RenderAsTextControls;
 
-    // Creates a WebFrame. Delete this WebFrame by calling WebFrame::close().
-    // It is valid to pass a null client pointer.
-    BLINK_EXPORT static WebLocalFrame* create(WebFrameClient*);
-
     // Returns the number of live WebFrame objects, used for leak checking.
     BLINK_EXPORT static int instanceCount();
 
-    // Returns the WebFrame associated with the current V8 context. This
-    // function can return 0 if the context is associated with a Document that
-    // is not currently being displayed in a Frame.
-    BLINK_EXPORT static WebLocalFrame* frameForCurrentContext();
-
-    // Returns the frame corresponding to the given context. This can return 0
-    // if the context is detached from the frame, or if the context doesn't
-    // correspond to a frame (e.g., workers).
-    BLINK_EXPORT static WebLocalFrame* frameForContext(v8::Handle<v8::Context>);
-
-    // Returns the frame inside a given frame or iframe element. Returns 0 if
-    // the given element is not a frame, iframe or if the frame is empty.
-    BLINK_EXPORT static WebLocalFrame* fromFrameOwnerElement(const WebElement&);
-
     virtual WebLocalFrame* toWebLocalFrame() = 0;
 
     // This method closes and deletes the WebFrame.
     virtual void close() = 0;
 
 
     // Basic properties ---------------------------------------------------
 
     // The unique name of this frame.
     virtual WebString uniqueName() const = 0;
@@ skipping 548 matching lines @@
     // text form. This is used only by layout tests.
     virtual WebString layerTreeAsText(bool showDebugInfo = false) const = 0;
 
 protected:
     ~WebFrame() { }
 };
 
 } // namespace blink
 
 #endif