| // 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/android/build_info.h" |
| #include "base/base_switches.h" |
| #include "base/command_line.h" |
| #include "base/logging.h" |
| #include "base/system/sys_info.h" |
| #include "cc/base/switches.h" |
| #include "content/public/browser/android/compositor.h" |
| #include "content/public/common/content_switches.h" |
| #include "gpu/command_buffer/service/gpu_switches.h" |
| #include "ui/base/ui_base_switches.h" |
| |
| namespace content { |
| |
| void SetContentCommandLineFlags(bool single_process) { |
| // 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(); |
| |
| if (single_process) { |
| // 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::kEnablePinch); |
| parsed_command_line->AppendSwitch(switches::kEnableViewport); |
| parsed_command_line->AppendSwitch(switches::kValidateInputEventStream); |
| |
| if (base::android::BuildInfo::GetInstance()->sdk_int() >= |
| base::android::SDK_VERSION_MARSHMALLOW) { |
| parsed_command_line->AppendSwitch(switches::kEnableLongpressDragSelection); |
| parsed_command_line->AppendSwitchASCII( |
| switches::kTouchTextSelectionStrategy, "direction"); |
| } |
| |
| // On legacy low-memory devices the behavior has not been studied with regard |
| // to having an extra process with similar priority as the foreground renderer |
| // and given that the system will often be looking for a process to be killed |
| // on such systems. |
| if (base::SysInfo::IsLowEndDevice()) |
| parsed_command_line->AppendSwitch(switches::kInProcessGPU); |
| |
| parsed_command_line->AppendSwitch( |
| switches::kMainFrameResizesAreOrientationChanges); |
| |
| // Disable anti-aliasing. |
| parsed_command_line->AppendSwitch( |
| cc::switches::kDisableCompositedAntialiasing); |
| } |
| |
| } // namespace content |