Rename initial_pos to initial_rect in ShowWidget and ShowView IPCs.

ui/web_dialogs/web_dialog_web_contents_delegate.cc

Index: ui/web_dialogs/web_dialog_web_contents_delegate.cc
diff --git a/ui/web_dialogs/web_dialog_web_contents_delegate.cc b/ui/web_dialogs/web_dialog_web_contents_delegate.cc
index ea0006ae79d8e9a20db3fc543db5fdc7faa98ddc..0493e4154846cfe0b0242957bd8571083afa4f79 100644
--- a/ui/web_dialogs/web_dialog_web_contents_delegate.cc
+++ b/ui/web_dialogs/web_dialog_web_contents_delegate.cc
@@ -42,11 +42,11 @@ WebContents* WebDialogWebContentsDelegate::OpenURLFromTab(
 
 void WebDialogWebContentsDelegate::AddNewContents(
     WebContents* source, WebContents* new_contents,
-    WindowOpenDisposition disposition, const gfx::Rect& initial_pos,
+    WindowOpenDisposition disposition, const gfx::Rect& initial_rect,
     bool user_gesture,
     bool* was_blocked) {
   handler_->AddNewContents(browser_context_, source, new_contents, disposition,
-                           initial_pos, user_gesture);
+                           initial_rect, user_gesture);
 }
 
 bool WebDialogWebContentsDelegate::IsPopupOrPanel(