Get rid of gpu related switches by passing gpu::GpuPreferences via IPC.

content/public/browser/gpu_utils.cc

Index: content/public/browser/gpu_utils.cc
diff --git a/content/public/browser/gpu_utils.cc b/content/public/browser/gpu_utils.cc
new file mode 100644
index 0000000000000000000000000000000000000000..773ee038b349d7fc83efcef7f3da01678a650045
--- /dev/null
+++ b/content/public/browser/gpu_utils.cc
@@ -0,0 +1,89 @@
+// Copyright 2016 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/public/browser/gpu_utils.h"
+
+#include "base/command_line.h"
+#include "base/strings/string_number_conversions.h"
+#include "content/public/common/content_switches.h"
+#include "gpu/command_buffer/service/gpu_switches.h"
+#include "gpu/config/gpu_switches.h"
+#include "ui/gl/gl_switches.h"
+
+namespace {
+
+bool GetUintFromSwitch(const base::CommandLine* command_line,
+                       const base::StringPiece& switch_string,
+                       uint32_t* value) {
+  if (!command_line->HasSwitch(switch_string))
+    return false;
+  std::string switch_value(command_line->GetSwitchValueASCII(switch_string));
+  return base::StringToUint(switch_value, value);
+}
+
+}  // namespace
+
+namespace content {
+
+const gpu::GpuPreferences GetGpuPreferencesFromCommandLine() {
+  DCHECK(base::CommandLine::InitializedForCurrentProcess());
+  const base::CommandLine* command_line =
+      base::CommandLine::ForCurrentProcess();
+  gpu::GpuPreferences gpu_preferences;
+  gpu_preferences.single_process =
+      command_line->HasSwitch(switches::kSingleProcess);
+  gpu_preferences.in_process_gpu =
+      command_line->HasSwitch(switches::kInProcessGPU);
+  gpu_preferences.ui_prioritize_in_gpu_process =
+      command_line->HasSwitch(switches::kUIPrioritizeInGpuProcess);
+  gpu_preferences.compile_shader_always_succeeds =
+      command_line->HasSwitch(switches::kCompileShaderAlwaysSucceeds);
+  gpu_preferences.disable_gl_error_limit =
+      command_line->HasSwitch(switches::kDisableGLErrorLimit);
+  gpu_preferences.disable_glsl_translator =
+      command_line->HasSwitch(switches::kDisableGLSLTranslator);
+  gpu_preferences.disable_gpu_driver_bug_workarounds =
+      command_line->HasSwitch(switches::kDisableGpuDriverBugWorkarounds);
+  gpu_preferences.disable_shader_name_hashing =
+      command_line->HasSwitch(switches::kDisableShaderNameHashing);
+  gpu_preferences.enable_gpu_command_logging =
+      command_line->HasSwitch(switches::kEnableGPUCommandLogging);
+  gpu_preferences.enable_gpu_debugging =
+      command_line->HasSwitch(switches::kEnableGPUDebugging);
+  gpu_preferences.enable_gpu_service_logging_gpu =
+      command_line->HasSwitch(switches::kEnableGPUServiceLoggingGPU);
+  gpu_preferences.disable_gpu_program_cache =
+      command_line->HasSwitch(switches::kDisableGpuProgramCache);
+  gpu_preferences.enforce_gl_minimums =
+      command_line->HasSwitch(switches::kEnforceGLMinimums);
+  if (GetUintFromSwitch(command_line, switches::kForceGpuMemAvailableMb,
+                        &gpu_preferences.force_gpu_mem_available)) {
+    gpu_preferences.force_gpu_mem_available *= 1024 * 1024;
+  }
+  if (GetUintFromSwitch(command_line, switches::kGpuProgramCacheSizeKb,
+                        &gpu_preferences.gpu_program_cache_size)) {
+    gpu_preferences.gpu_program_cache_size *= 1024;
+  }
+  gpu_preferences.disable_gpu_shader_disk_cache =
+      command_line->HasSwitch(switches::kDisableGpuShaderDiskCache);
+  gpu_preferences.enable_share_group_async_texture_upload =
+      command_line->HasSwitch(switches::kEnableShareGroupAsyncTextureUpload);
+  gpu_preferences.enable_subscribe_uniform_extension =
+      command_line->HasSwitch(switches::kEnableSubscribeUniformExtension);
+  gpu_preferences.enable_threaded_texture_mailboxes =
+      command_line->HasSwitch(switches::kEnableThreadedTextureMailboxes);
+  gpu_preferences.gl_shader_interm_output =
+      command_line->HasSwitch(switches::kGLShaderIntermOutput);
+  gpu_preferences.emulate_shader_precision =
+      command_line->HasSwitch(switches::kEmulateShaderPrecision);
+  gpu_preferences.enable_gpu_service_logging =
+      command_line->HasSwitch(switches::kEnableGPUServiceLogging);
+  gpu_preferences.enable_gpu_service_tracing =
+      command_line->HasSwitch(switches::kEnableGPUServiceTracing);
+  gpu_preferences.enable_unsafe_es3_apis =
+      command_line->HasSwitch(switches::kEnableUnsafeES3APIs);
+  return gpu_preferences;
+}
+
+}  // namespace content