Change WebContentsDelegate::RunFileChooser to be frame based.

chrome/browser/extensions/extension_view_host.cc

Index: chrome/browser/extensions/extension_view_host.cc
diff --git a/chrome/browser/extensions/extension_view_host.cc b/chrome/browser/extensions/extension_view_host.cc
index 5fc976808d279febb414c651b4807eab42d454b5..684bbf3e8793b18dd328df1f330226b1e5f7c7fa 100644
--- a/chrome/browser/extensions/extension_view_host.cc
+++ b/chrome/browser/extensions/extension_view_host.cc
@@ -220,11 +220,11 @@ content::ColorChooser* ExtensionViewHost::OpenColorChooser(
 }
 
 void ExtensionViewHost::RunFileChooser(
-    WebContents* tab,
+    content::RenderFrameHost* render_frame_host,
     const content::FileChooserParams& params) {
   // For security reasons opening a file picker requires a visible <input>
   // element to click on, so this code only exists for extensions with a view.
-  FileSelectHelper::RunFileChooser(tab, params);
+  FileSelectHelper::RunFileChooser(render_frame_host, params);
 }