Don't print the callstack in forked browser test processes.

content/test/content_browser_test.cc

 // Copyright (c) 2011 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/test/content_browser_test.h"
 
 #include "base/command_line.h"
-#include "base/debug/stack_trace.h"
 #include "base/file_path.h"
 #include "base/logging.h"
 #include "base/message_loop.h"
 #include "base/path_service.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/common/url_constants.h"
 #include "content/shell/shell.h"
 #include "content/shell/shell_browser_context.h"
 #include "content/shell/shell_content_browser_client.h"
@@ skipping 24 matching lines @@
 ContentBrowserTest::~ContentBrowserTest() {
 }
 
 void ContentBrowserTest::SetUp() {
   shell_main_delegate_.reset(new ShellMainDelegate);
   shell_main_delegate_->PreSandboxStartup();
 
   CommandLine* command_line = CommandLine::ForCurrentProcess();
   command_line->AppendSwitch(switches::kContentBrowserTest);
 
-#if defined(OS_LINUX)
-  // http://crbug.com/139209
-  command_line->AppendSwitch(switches::kDisableGpuProcessPrelaunch);
-#endif
-
   SetUpCommandLine(command_line);
 
   // Single-process mode is not set in BrowserMain, so process it explicitly,
   // and set up renderer.
   if (command_line->HasSwitch(switches::kSingleProcess)) {
     RenderProcessHost::set_run_renderer_in_process(true);
     single_process_renderer_client_.reset(new ShellContentRendererClient);
     content::GetContentClient()->set_renderer_for_testing(
         single_process_renderer_client_.get());
   }
@@ skipping 12 matching lines @@
 
   BrowserTestBase::SetUp();
 }
 
 void ContentBrowserTest::TearDown() {
   BrowserTestBase::TearDown();
 
   shell_main_delegate_.reset();
 }
 
-#if defined(OS_POSIX)
-// On SIGTERM (sent by the runner on timeouts), dump a stack trace (to make
-// debugging easier) and also exit with a known error code (so that the test
-// framework considers this a failure -- http://crbug.com/57578).
-static void DumpStackTraceSignalHandler(int signal) {
-  base::debug::StackTrace().PrintBacktrace();
-  _exit(128 + signal);
-}
-#endif  // defined(OS_POSIX)
-
 void ContentBrowserTest::RunTestOnMainThreadLoop() {
   CHECK_EQ(Shell::windows().size(), 1u);
   shell_ = Shell::windows()[0];
 
-#if defined(OS_POSIX)
-  signal(SIGTERM, DumpStackTraceSignalHandler);
-#endif  // defined(OS_POSIX)
-
 #if defined(OS_MACOSX)
   // On Mac, without the following autorelease pool, code which is directly
   // executed (as opposed to executed inside a message loop) would autorelease
   // objects into a higher-level pool. This pool is not recycled in-sync with
   // the message loops' pools and causes problems with code relying on
   // deallocation via an autorelease pool (such as browser window closure and
   // browser shutdown). To avoid this, the following pool is recycled after each
   // time code is directly executed.
   base::mac::ScopedNSAutoreleasePool pool;
 #endif
@@ skipping 36 matching lines @@
       static_cast<ShellContentBrowserClient*>(GetContentClient()->browser());
   return Shell::CreateNewWindow(
       browser_client->off_the_record_browser_context(),
       GURL(chrome::kAboutBlankURL),
       NULL,
       MSG_ROUTING_NONE,
       NULL);
 }
 
 }  // namespace content