Fixing flaky overscroll and touch exploration mode browser tests.

chrome/test/base/in_process_browser_test.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/test/base/in_process_browser_test.h"
 
 #include "base/auto_reset.h"
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 374 matching lines @@
 
   const BrowserList* active_browser_list =
       BrowserList::GetInstance(active_desktop);
   if (!active_browser_list->empty()) {
     browser_ = active_browser_list->get(0);
 #if defined(USE_ASH)
     // There are cases where windows get created maximized by default.
     if (browser_->window()->IsMaximized())
       browser_->window()->Restore();
 #endif
-    content::WaitForLoadStop(
-        browser_->tab_strip_model()->GetActiveWebContents());
+    content::WebContents* web_contents =
+        browser_->tab_strip_model()->GetActiveWebContents();
+    content::WaitForLoadStop(web_contents);
+    // The RenderView for WebContents is created as a result of the navigation
+    // to the New Tab page. The creation involves sending a resize message to
+    // the renderer process. Here we wait for the resize ack to be received,
+    // since tests may not expect to start in a "waiting for resize" state.
+    // E.g. currently WindowEventDispatcher has code to hold touch and mouse
+    // move events until resize is complete (crbug.com/384342)
+    content::WaitForResizeComplete(web_contents);
   }
 
 #if !defined(OS_ANDROID) && !defined(OS_IOS)
   // Do not use the real StorageMonitor for tests, which introduces another
   // source of variability and potential slowness.
   ASSERT_TRUE(storage_monitor::TestStorageMonitor::CreateForBrowserTests());
 #endif
 
 #if defined(OS_MACOSX)
   // On Mac, without the following autorelease pool, code which is directly
@@ skipping 64 matching lines @@
   // On the Mac, this eventually reaches
   // -[BrowserWindowController windowWillClose:], which will post a deferred
   // -autorelease on itself to ultimately destroy the Browser object. The line
   // below is necessary to pump these pending messages to ensure all Browsers
   // get deleted.
   content::RunAllPendingInMessageLoop();
   delete autorelease_pool_;
   autorelease_pool_ = NULL;
 #endif
 }