Prepare for color input datalist support on Android

public/web/WebViewClient.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 61 matching lines @@
 class WebRange;
 class WebSpeechInputController;
 class WebSpeechInputListener;
 class WebSpeechRecognizer;
 class WebStorageNamespace;
 class WebURL;
 class WebURLRequest;
 class WebUserMediaClient;
 class WebView;
 class WebWidget;
+struct WebColorSuggestion;
 struct WebConsoleMessage;
 struct WebContextMenuData;
 struct WebDateTimeChooserParams;
 struct WebPoint;
 struct WebPopupMenuInfo;
 struct WebRect;
 struct WebSize;
 struct WebWindowFeatures;
 
 // Since a WebView is a WebWidget, a WebViewClient is a WebWidgetClient.
@@ skipping 85 matching lines @@
     //
     // Returns true if the keyboard event was handled by the embedder,
     // indicating that the default action should be suppressed.
     virtual bool handleCurrentKeyboardEvent() { return false; }
 
     // Dialogs -------------------------------------------------------------
 
     // This method opens the color chooser and returns a new WebColorChooser
     // instance. If there is a WebColorChooser already from the last time this
     // was called, it ends the color chooser by calling endChooser, and replaces
-    // it with the new one.
+    // it with the new one. The given list of suggestions can be used to show a
+    // simple interface with a limited set of choices.
+
+    // FIXME: Should be removed when the chromium side change lands.
     virtual WebColorChooser* createColorChooser(WebColorChooserClient*,
                                                 const WebColor&) { return 0; }
 
+    virtual WebColorChooser* createColorChooser(
+        WebColorChooserClient*,
+        const WebColor&,
+        const WebVector<WebColorSuggestion>&) { return 0; }
+
     // This method returns immediately after showing the dialog. When the
     // dialog is closed, it should call the WebFileChooserCompletion to
     // pass the results of the dialog. Returns false if
     // WebFileChooseCompletion will never be called.
     virtual bool runFileChooser(const WebFileChooserParams&,
                                 WebFileChooserCompletion*) { return false; }
 
     // Ask users to choose date/time for the specified parameters. When a user
     // chooses a value, an implementation of this function should call
     // WebDateTimeChooserCompletion::didChooseValue or didCancelChooser. If the
@@ skipping 182 matching lines @@
     // Informs the browser that the draggable regions have been updated.
     virtual void draggableRegionsChanged() { }
 
 protected:
     ~WebViewClient() { }
 };
 
 } // namespace blink
 
 #endif