Fixed bugs in GPU process startup on POSIX platforms. Added...

chrome/gpu/gpu_main.cc

 // Copyright (c) 2010 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 "base/message_loop.h"
 #include "build/build_config.h"
 #include "chrome/common/chrome_constants.h"
+#include "chrome/common/chrome_switches.h"
 #include "chrome/common/main_function_params.h"
 #include "chrome/gpu/gpu_config.h"
 #include "chrome/gpu/gpu_process.h"
 #include "chrome/gpu/gpu_thread.h"
 
 #if defined(USE_LINUX_BREAKPAD)
 #include "chrome/app/breakpad_linux.h"
 #endif
 
 #if defined(OS_WIN)
 #include "app/win_util.h"
 #elif defined(GPU_USE_GLX)
 #include <dlfcn.h>
 #include <GL/glxew.h>
 #endif
 
 // Main function for starting the Gpu process.
 int GpuMain(const MainFunctionParams& parameters) {
 #if defined(USE_LINUX_BREAKPAD)
   // Needs to be called after we have chrome::DIR_USER_DATA.
   InitCrashReporter();
 #endif
 
+  const CommandLine& command_line = parameters.command_line_;
+  if (command_line.HasSwitch(switches::kGpuStartupDialog)) {
+    ChildProcess::WaitForDebugger(L"Gpu");

[brettw, 2010/03/22 22:14:41]

This doesn't seem right. We have "startup dialog" which displays a message box
for you to manually attach to a renderer. But the analog for what you've done
here is the 
--wait-for-debugger-children described here:
http://www.chromium.org/developers/how-tos/debugging

It seems like it would be better to re-use that and add a new filter type than
create a new one.

+  }
+
   MessageLoop main_message_loop(MessageLoop::TYPE_UI);
   std::wstring app_name = chrome::kBrowserAppName;
   PlatformThread::SetName(WideToASCII(app_name + L"_GpuMain").c_str());
 
 #if defined(OS_WIN)
   win_util::ScopedCOMInitializer com_initializer;
 #elif defined(GPU_USE_GLX)
   dlopen("libGL.so.1", RTLD_LAZY | RTLD_GLOBAL);
   glxewInit();
 #endif
 
   GpuProcess gpu_process;
   gpu_process.set_main_thread(new GpuThread());
 
   main_message_loop.Run();
 
   return 0;
 }