Use IPC to wait for download in DownloadTest.

chrome/test/ui/ui_test.h

Index: chrome/test/ui/ui_test.h
diff --git a/chrome/test/ui/ui_test.h b/chrome/test/ui/ui_test.h
index 94148080b64c60cbd0395c01ec163b47b963ef1b..3aadfac48a9b5156320d1b0017fbe49293bfeef1 100644
--- a/chrome/test/ui/ui_test.h
+++ b/chrome/test/ui/ui_test.h
@@ -191,23 +191,6 @@ class UITestBase {
   // assert that the tab count is valid at the end of the wait.
   void WaitUntilTabCount(int tab_count);
 
-  // Checks whether the download shelf is visible in the current browser, giving
-  // it a chance to appear (we don't know the exact timing) while finishing as
-  // soon as possible.
-  bool WaitForDownloadShelfVisible(BrowserProxy* browser);
-
-  // Checks whether the download shelf is invisible in the current browser,
-  // giving it a chance to appear (we don't know the exact timing) while
-  // finishing as soon as possible.
-  bool WaitForDownloadShelfInvisible(BrowserProxy* browser);
-
- private:
-  // Waits for download shelf visibility or invisibility.
-  bool WaitForDownloadShelfVisibilityChange(BrowserProxy* browser,
-                                            bool wait_for_open);
-
- public:
-
   // Waits until the Find window has become fully visible (if |wait_for_open| is
   // true) or fully hidden (if |wait_for_open| is false). This function can time
   // out (return false) if the window doesn't appear within a specific time.