Linux: make import warning dialog modal.

chrome/browser/importer/importer.h

Index: chrome/browser/importer/importer.h
diff --git a/chrome/browser/importer/importer.h b/chrome/browser/importer/importer.h
index b42bc20eb2c9daf3f8e0e941e169469af81518d2..035e92550f2552412fbfd8259faed3e84084ee7a 100644
--- a/chrome/browser/importer/importer.h
+++ b/chrome/browser/importer/importer.h
@@ -223,6 +223,10 @@ class ImporterHost : public base::RefCounted<ImporterHost>,
     return headless_;
   }
 
+  void set_parent_window(gfx::NativeWindow parent_window) {
+    parent_window_ = parent_window;
+  }
+
   // An interface which an object can implement to be notified of events during
   // the import process.
   class Observer {
@@ -310,6 +314,9 @@ class ImporterHost : public base::RefCounted<ImporterHost>,
   // True if UI is not to be shown.
   bool headless_;
 
+  // Parent Window to use when showing any modal dialog boxes.
+  gfx::NativeWindow parent_window_;
+
   // Firefox profile lock.
   scoped_ptr<FirefoxProfileLock> firefox_lock_;