[Element / Autofill] Add boundsInViewportFloat() to fix <input> popup misalignment.

content/public/renderer/render_view.h

Index: content/public/renderer/render_view.h
diff --git a/content/public/renderer/render_view.h b/content/public/renderer/render_view.h
index 1f0a2358e606ba01c81b3ebb29548c57ba47f523..81cb79cf0175b82d2e56450121486a677a0e1e4c 100644
--- a/content/public/renderer/render_view.h
+++ b/content/public/renderer/render_view.h
@@ -24,6 +24,7 @@ class WebString;
 class WebURLRequest;
 class WebView;
 struct WebContextMenuData;
+struct WebFloatRect;
 struct WebRect;
 }
 
@@ -130,6 +131,12 @@ class CONTENT_EXPORT RenderView : public IPC::Sender {
   // use-zoom-for-dsf feature is eanbled, and Viewport coordinates
   // becomes DSF times larger than window coordinates.
   virtual void convertViewportToWindow(blink::WebRect* rect) = 0;
+  virtual void convertViewportToWindow(blink::WebFloatRect* rect) = 0;
+
+  // Returns the bounding box for |element| in Window coordinates. This function
+  // will update the layout if required.
+  virtual void getElementBoundingBoxWindow(blink::WebElement* element,
+      blink::WebFloatRect* rect) = 0;
 
  protected:
   ~RenderView() override {}