Implement chrome.experimental.downloads.search()

chrome/browser/extensions/extension_downloads_api.h

Index: chrome/browser/extensions/extension_downloads_api.h
diff --git a/chrome/browser/extensions/extension_downloads_api.h b/chrome/browser/extensions/extension_downloads_api.h
index b0cf0e90cc3db310d6ae215aa9250fcfbb2156c4..9eab1fdc9618265969b8daa1d4d0dd3114f9818e 100644
--- a/chrome/browser/extensions/extension_downloads_api.h
+++ b/chrome/browser/extensions/extension_downloads_api.h
@@ -15,6 +15,7 @@
 #include "base/string16.h"
 #include "chrome/browser/extensions/extension_function.h"
 #include "content/browser/download/download_item.h"
+#include "content/browser/download/download_query.h"
 #include "content/browser/download/download_manager.h"
 
 namespace base {
@@ -140,6 +141,9 @@ class DownloadsSearchFunction : public SyncDownloadsFunction {
   virtual void RunInternal() OVERRIDE;
 
  private:
+  download_util::DownloadQuery query_;
+  int get_id_;
+
   DISALLOW_COPY_AND_ASSIGN(DownloadsSearchFunction);
 };