Implement the file chooser as a new resource "host"

webkit/plugins/ppapi/plugin_delegate.h

Index: webkit/plugins/ppapi/plugin_delegate.h
diff --git a/webkit/plugins/ppapi/plugin_delegate.h b/webkit/plugins/ppapi/plugin_delegate.h
index 545afa4e68e89d1cf2436c9ad44c1ac849a8c5db..ffd3adb4c14a16c2a32e0573739c578dbfbbb208 100644
--- a/webkit/plugins/ppapi/plugin_delegate.h
+++ b/webkit/plugins/ppapi/plugin_delegate.h
@@ -73,12 +73,10 @@ class PlatformCanvas;
 }
 
 namespace WebKit {
-class WebFileChooserCompletion;
 class WebGamepads;
 class WebPlugin;
 struct WebCompositionUnderline;
 struct WebCursorInfo;
-struct WebFileChooserParams;
 }
 
 namespace webkit_glue {
@@ -417,11 +415,6 @@ class PluginDelegate {
   // Notifies that the index of the currently selected item has been updated.
   virtual void SelectedFindResultChanged(int identifier, int index) = 0;
 
-  // Runs a file chooser.
-  virtual bool RunFileChooser(
-      const WebKit::WebFileChooserParams& params,
-      WebKit::WebFileChooserCompletion* chooser_completion) = 0;
-
   // Sends an async IPC to open a file.
   typedef base::Callback<void (base::PlatformFileError, base::PassPlatformFile)>
       AsyncOpenFileCallback;