cc: Set ui/gpu/cc/ipc/upload/raster thread priorities.

content/gpu/gpu_child_thread.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/gpu/gpu_child_thread.h"
 
 #include <string>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/threading/worker_pool.h"
 #include "build/build_config.h"
 #include "content/common/child_process.h"
 #include "content/common/gpu/gpu_messages.h"
 #include "content/gpu/gpu_info_collector.h"
 #include "content/gpu/gpu_watchdog_thread.h"
 #include "content/public/common/content_client.h"
 #include "content/public/common/content_switches.h"
 #include "ipc/ipc_channel_handle.h"
 #include "ipc/ipc_sync_message_filter.h"
 #include "ui/gl/gl_implementation.h"
 
+#if defined(OS_ANDROID)
+// TODO(epenner): Move thread priorities to base. (crbug.com/170549)
+#include <sys/resource.h>
+#endif
+
 namespace content {
 namespace {
 
 bool GpuProcessLogMessageHandler(int severity,
                                  const char* file, int line,
                                  size_t message_start,
                                  const std::string& str) {
   std::string header = str.substr(0, message_start);
   std::string message = str.substr(message_start);
 
@@ skipping 84 matching lines @@
 
 void GpuChildThread::OnInitialize() {
   Send(new GpuHostMsg_Initialized(!dead_on_arrival_));
 
   if (dead_on_arrival_) {
     VLOG(1) << "Exiting GPU process due to errors during initialization";
     MessageLoop::current()->Quit();
     return;
   }
 
+#if defined(OS_ANDROID)
+  // TODO(epenner): Move thread priorities to base. (crbug.com/170549)
+  int nice_value = -6; // High priority
+  setpriority(PRIO_PROCESS, base::PlatformThread::CurrentId(), nice_value);
+#endif
+
   // We don't need to pipe log messages if we are running the GPU thread in
   // the browser process.
   if (!in_browser_process_)
     logging::SetLogMessageHandler(GpuProcessLogMessageHandler);
 
   // Record initialization only after collecting the GPU info because that can
   // take a significant amount of time.
   gpu_info_.initialization_time = base::Time::Now() - process_start_time_;
 
   // Defer creation of the render thread. This is to prevent it from handling
@@ skipping 89 matching lines @@
     // the future posting of tasks to the message loop.
     if (watchdog_thread_->message_loop())
       watchdog_thread_->PostAcknowledge();
     // Prevent rearming.
     watchdog_thread_->Stop();
   }
 }
 
 }  // namespace content