Introduce content::TestLauncherDelegate.AdjustDefaultParallelJobs() to allow us to auto-disable par…

chrome/test/base/chrome_test_launcher.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 "content/public/test/test_launcher.h"
 
 #include <stack>
 
 #include "base/command_line.h"
 #include "base/debug/leak_annotations.h"
 #include "base/file_util.h"
 #include "base/files/file_path.h"
 #include "base/logging.h"
 #include "base/memory/linked_ptr.h"
 #include "base/process/process_metrics.h"
 #include "base/run_loop.h"
 #include "base/strings/string_util.h"
 #include "base/test/test_file_util.h"
 #include "chrome/app/chrome_main_delegate.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/test/base/chrome_test_suite.h"
+#include "chrome/test/base/test_switches.h"
 #include "content/public/app/content_main.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/test/test_utils.h"
 #include "ui/base/test/ui_controls.h"
 
 #if defined(OS_MACOSX)
 #include "chrome/browser/chrome_browser_application_mac.h"
 #endif  // defined(OS_MACOSX)
 
 #if defined(OS_WIN)
@@ skipping 79 matching lines @@
 #if defined(OS_WIN) || defined (OS_LINUX)
     return new ChromeMainDelegate();
 #else
     // This delegate is only guaranteed to link on linux and windows, so just
     // bail out if we are on any other platform.
     NOTREACHED();
     return NULL;
 #endif
   }
 
+  virtual void AdjustDefaultParallelJobs(int* default_jobs) OVERRIDE {
+#if defined(OS_WIN) && defined(USE_AURA)
+    if (CommandLine::ForCurrentProcess()->HasSwitch(
+            switches::kAshBrowserTests)) {
+      *default_jobs = 1;
+      fprintf(stdout,
+              "Disabling test parallelization for --ash-browsertests.\n");
+      fflush(stdout);
+    }
+#endif  // defined(OS_WIN) && defined(USE_AURA)
+  }
+
  private:
 #if !defined(USE_AURA) && defined(TOOLKIT_VIEWS)
   std::stack<linked_ptr<views::AcceleratorHandler> > handlers_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(ChromeTestLauncherDelegate);
 };
 
 }  // namespace
 
 int LaunchChromeTests(int default_jobs, int argc, char** argv) {
 #if defined(OS_MACOSX)
   chrome_browser_application_mac::RegisterBrowserCrApp();
 #endif
 
 #if defined(OS_LINUX) || defined(OS_ANDROID)
   // We leak this pointer intentionally. The breakpad client needs to outlive
   // all other code.
   chrome::ChromeBreakpadClient* breakpad_client =
       new chrome::ChromeBreakpadClient();
   ANNOTATE_LEAKING_OBJECT_PTR(breakpad_client);
   breakpad::SetBreakpadClient(breakpad_client);
 #endif
 
   ChromeTestLauncherDelegate launcher_delegate;
   return content::LaunchTests(&launcher_delegate, default_jobs, argc, argv);
 }