// 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/browser/android/content_startup_flags.h" #include "base/base_switches.h" #include "base/command_line.h" #include "base/logging.h" #include "base/strings/string_number_conversions.h" #include "cc/base/switches.h" #include "content/public/browser/render_process_host.h" #include "content/public/common/content_constants.h" #include "content/public/common/content_switches.h" #include "gpu/command_buffer/service/gpu_switches.h" #include "ui/base/ui_base_switches.h" #include "ui/native_theme/native_theme_switches.h" namespace content { void SetContentCommandLineFlags(bool single_process, const std::string& plugin_descriptor) { // May be called multiple times, to cover all possible program entry points. static bool already_initialized = false; if (already_initialized) return; already_initialized = true; base::CommandLine* parsed_command_line = base::CommandLine::ForCurrentProcess(); int command_line_renderer_limit = -1; if (parsed_command_line->HasSwitch(switches::kRendererProcessLimit)) { std::string limit = parsed_command_line->GetSwitchValueASCII( switches::kRendererProcessLimit); int value; if (base::StringToInt(limit, &value)) { command_line_renderer_limit = std::max(0, value); } } if (command_line_renderer_limit > 0) { int limit = std::min(command_line_renderer_limit, static_cast<int>(kMaxRendererProcessCount)); RenderProcessHost::SetMaxRendererProcessCount(limit); } if (single_process || command_line_renderer_limit == 0) { // Need to ensure the command line flag is consistent as a lot of chrome // internal code checks this directly, but it wouldn't normally get set when // we are implementing an embedded WebView. parsed_command_line->AppendSwitch(switches::kSingleProcess); } parsed_command_line->AppendSwitch(switches::kEnableBeginFrameScheduling); parsed_command_line->AppendSwitch(switches::kEnablePinch); parsed_command_line->AppendSwitch(switches::kEnableOverlayFullscreenVideo); parsed_command_line->AppendSwitch(switches::kEnableOverlayScrollbar); parsed_command_line->AppendSwitch(switches::kEnableOverscrollNotifications); parsed_command_line->AppendSwitch(switches::kValidateInputEventStream); // Run the GPU service as a thread in the browser instead of as a // standalone process. parsed_command_line->AppendSwitch(switches::kInProcessGPU); parsed_command_line->AppendSwitch(switches::kDisableGpuShaderDiskCache); parsed_command_line->AppendSwitch(switches::kEnableViewport); parsed_command_line->AppendSwitch(switches::kEnableViewportMeta); parsed_command_line->AppendSwitch( switches::kMainFrameResizesAreOrientationChanges); // Disable anti-aliasing. parsed_command_line->AppendSwitch( cc::switches::kDisableCompositedAntialiasing); parsed_command_line->AppendSwitch(switches::kUIPrioritizeInGpuProcess); parsed_command_line->AppendSwitch(switches::kEnableDelegatedRenderer); if (!plugin_descriptor.empty()) { parsed_command_line->AppendSwitchNative( switches::kRegisterPepperPlugins, plugin_descriptor); } // Disable profiler timing by default. if (!parsed_command_line->HasSwitch(switches::kProfilerTiming)) { parsed_command_line->AppendSwitchASCII( switches::kProfilerTiming, switches::kProfilerTimingDisabledValue); } } } // namespace content