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

android_webview/browser/deferred_gpu_command_service.cc

Index: android_webview/browser/deferred_gpu_command_service.cc
diff --git a/android_webview/browser/deferred_gpu_command_service.cc b/android_webview/browser/deferred_gpu_command_service.cc
index 9021deb94f7ebb00d2d4fa74bc2e0901dfe4077b..d2a19f681b0d4625113ccbd138a4926f034a27ee 100644
--- a/android_webview/browser/deferred_gpu_command_service.cc
+++ b/android_webview/browser/deferred_gpu_command_service.cc
@@ -12,7 +12,6 @@
 #include "base/synchronization/lock.h"
 #include "base/trace_event/trace_event.h"
 #include "content/public/browser/android/synchronous_compositor.h"
-#include "content/public/browser/gpu_utils.h"
 #include "content/public/common/content_switches.h"
 #include "gpu/command_buffer/service/framebuffer_completeness_cache.h"
 #include "gpu/command_buffer/service/gpu_preferences.h"
@@ -28,6 +27,75 @@
 base::LazyInstance<scoped_refptr<DeferredGpuCommandService> >
     g_service = LAZY_INSTANCE_INITIALIZER;
 
+bool GetSizeTFromSwitch(const base::CommandLine* command_line,
+                        const base::StringPiece& switch_string,
+                        size_t* value) {
+  if (!command_line->HasSwitch(switch_string))
+    return false;
+  std::string switch_value(command_line->GetSwitchValueASCII(switch_string));
+  return base::StringToSizeT(switch_value, value);
+}
+
+gpu::GpuPreferences GetGpuPreferencesFromCommandLine() {
+  // TODO(penghuang): share below code with content/gpu/gpu_child_thread.cc
+  // http://crbug.com/590825
+  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 (GetSizeTFromSwitch(command_line, switches::kForceGpuMemAvailableMb,
+                         &gpu_preferences.force_gpu_mem_available)) {
+    gpu_preferences.force_gpu_mem_available *= 1024 * 1024;
+  }
+  if (GetSizeTFromSwitch(command_line, switches::kGpuProgramCacheSizeKb,
+                         &gpu_preferences.gpu_program_cache_size)) {
+    gpu_preferences.gpu_program_cache_size *= 1024;
+  }
+  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
 
 base::LazyInstance<base::ThreadLocalBoolean> ScopedAllowGL::allow_gl;
@@ -72,8 +140,7 @@
 }
 
 DeferredGpuCommandService::DeferredGpuCommandService()
-    : gpu::InProcessCommandBuffer::Service(
-          content::GetGpuPreferencesFromCommandLine()),
+    : gpu::InProcessCommandBuffer::Service(GetGpuPreferencesFromCommandLine()),
       sync_point_manager_(new gpu::SyncPointManager(true)) {
 }