Also append GPU command-line flags to the browser in single-process mode

content/browser/renderer_host/render_process_host_impl.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.
 
 // Represents the browser side of the browser <--> renderer communication
 // channel. There will be one RenderProcessHost per renderer process.
 
 #include "content/browser/renderer_host/render_process_host_impl.h"
 
 #include <algorithm>
@@ skipping 873 matching lines @@
 }
 
 bool RenderProcessHostImpl::IsGuest() const {
   return is_guest_;
 }
 
 StoragePartition* RenderProcessHostImpl::GetStoragePartition() const {
   return storage_partition_impl_;
 }
 
+static void AppendGpuCommandLineFlags(CommandLine* command_line) {
+  if (content::IsThreadedCompositingEnabled())
+    command_line->AppendSwitch(switches::kEnableThreadedCompositing);
+
+  if (content::IsDelegatedRendererEnabled())
+    command_line->AppendSwitch(switches::kEnableDelegatedRenderer);
+
+  if (content::IsDeadlineSchedulingEnabled())
+    command_line->AppendSwitch(switches::kEnableDeadlineScheduling);
+
+  // Appending disable-gpu-feature switches due to software rendering list.

[jamesr, 2014/01/08 22:20:40]

can you remove any of the code from content/gpu/ that special-cases the
kSingleProcess flag with this?

+  GpuDataManagerImpl* gpu_data_manager = GpuDataManagerImpl::GetInstance();
+  DCHECK(gpu_data_manager);
+  gpu_data_manager->AppendRendererCommandLine(command_line);
+}
+
 void RenderProcessHostImpl::AppendRendererCommandLine(
     CommandLine* command_line) const {
   // Pass the process type first, so it shows first in process listings.
   command_line->AppendSwitchASCII(switches::kProcessType,
                                   switches::kRendererProcess);
 
   // Now send any options from our own command line we want to propagate.
   const CommandLine& browser_command_line = *CommandLine::ForCurrentProcess();
   PropagateBrowserCommandLineToRenderer(browser_command_line, command_line);
 
   // Pass on the browser locale.
   const std::string locale =
       GetContentClient()->browser()->GetApplicationLocale();
   command_line->AppendSwitchASCII(switches::kLang, locale);
 
   // If we run base::FieldTrials, we want to pass to their state to the
   // renderer so that it can act in accordance with each state, or record
   // histograms relating to the base::FieldTrial states.
   std::string field_trial_states;
   base::FieldTrialList::StatesToString(&field_trial_states);
   if (!field_trial_states.empty()) {
     command_line->AppendSwitchASCII(switches::kForceFieldTrials,
                                     field_trial_states);
   }
 
-  if (content::IsThreadedCompositingEnabled())
-    command_line->AppendSwitch(switches::kEnableThreadedCompositing);
-
-  if (content::IsDelegatedRendererEnabled())
-    command_line->AppendSwitch(switches::kEnableDelegatedRenderer);
-
-  if (content::IsDeadlineSchedulingEnabled())
-    command_line->AppendSwitch(switches::kEnableDeadlineScheduling);
-
   GetContentClient()->browser()->AppendExtraCommandLineSwitches(
       command_line, GetID());
 
-  // Appending disable-gpu-feature switches due to software rendering list.
-  GpuDataManagerImpl* gpu_data_manager = GpuDataManagerImpl::GetInstance();
-  DCHECK(gpu_data_manager);
-  gpu_data_manager->AppendRendererCommandLine(command_line);
+  AppendGpuCommandLineFlags(command_line);
 }
 
 void RenderProcessHostImpl::PropagateBrowserCommandLineToRenderer(
     const CommandLine& browser_cmd,
     CommandLine* renderer_cmd) const {
   // Propagate the following switches to the renderer command line (along
   // with any associated values) if present in the browser command line.
   static const char* const kSwitchNames[] = {
     switches::kAudioBufferSize,
     switches::kAuditAllHandles,
@@ skipping 704 matching lines @@
 // static
 bool RenderProcessHost::run_renderer_in_process() {
   return g_run_renderer_in_process_;
 }
 
 // static
 void RenderProcessHost::SetRunRendererInProcess(bool value) {
   g_run_renderer_in_process_ = value;
 
   CommandLine* command_line = CommandLine::ForCurrentProcess();
-  if (value && !command_line->HasSwitch(switches::kLang)) {
-    // Modify the current process' command line to include the browser locale,
-    // as the renderer expects this flag to be set.
-    const std::string locale =
-        GetContentClient()->browser()->GetApplicationLocale();
-    command_line->AppendSwitchASCII(switches::kLang, locale);
+  if (value) {
+    if (!command_line->HasSwitch(switches::kLang)) {
+      // Modify the current process' command line to include the browser locale,
+      // as the renderer expects this flag to be set.
+      const std::string locale =
+          GetContentClient()->browser()->GetApplicationLocale();
+      command_line->AppendSwitchASCII(switches::kLang, locale);
+    }
+    AppendGpuCommandLineFlags(command_line);

[jamesr, 2014/01/08 22:20:40]

probably deserves a comment with link to a bug and/or TODO

   }
 }
 
 // static
 RenderProcessHost::iterator RenderProcessHost::AllHostsIterator() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   return iterator(g_all_hosts.Pointer());
 }
 
 // static
@@ skipping 343 matching lines @@
     return;
   Send(new MediaStreamMsg_EnableAecDump(file_for_transit));
 }
 
 void RenderProcessHostImpl::SendDisableAecDumpToRenderer() {
   Send(new MediaStreamMsg_DisableAecDump());
 }
 #endif
 
 }  // namespace content