Rename JavaScript "messages" to "dialogs".

chrome/browser/ui/javascript_dialogs/javascript_dialog_tab_helper.h

Index: chrome/browser/ui/javascript_dialogs/javascript_dialog_tab_helper.h
diff --git a/chrome/browser/ui/javascript_dialogs/javascript_dialog_tab_helper.h b/chrome/browser/ui/javascript_dialogs/javascript_dialog_tab_helper.h
index 35cc6d831999c0fc309b88a0cd5f7d5688a3f236..1417cd780aa9759bd9798ef3321d93b47a173153 100644
--- a/chrome/browser/ui/javascript_dialogs/javascript_dialog_tab_helper.h
+++ b/chrome/browser/ui/javascript_dialogs/javascript_dialog_tab_helper.h
@@ -41,7 +41,7 @@ class JavaScriptDialogTabHelper
   // JavaScriptDialogManager:
   void RunJavaScriptDialog(content::WebContents* web_contents,
                            const GURL& origin_url,
-                           content::JavaScriptMessageType message_type,
+                           content::JavaScriptDialogType dialog_type,
                            const base::string16& message_text,
                            const base::string16& default_prompt_text,
                            const DialogClosedCallback& callback,
@@ -88,8 +88,8 @@ class JavaScriptDialogTabHelper
   base::WeakPtr<JavaScriptDialog> dialog_;
 
   // The type of dialog being displayed. Only valid when |dialog_| is non-null.
-  content::JavaScriptMessageType message_type_ =
-      content::JavaScriptMessageType::JAVASCRIPT_MESSAGE_TYPE_ALERT;
+  content::JavaScriptDialogType dialog_type_ =
+      content::JavaScriptDialogType::JAVASCRIPT_DIALOG_TYPE_ALERT;
 
   // The callback provided for when the dialog is closed. Usually the dialog
   // itself calls it, but in the cases where the dialog is closed not by the