app_shell: Add ShellContentRendererClient

apps/shell/shell_main_delegate.cc

 // Copyright 2013 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 "apps/shell/shell_main_delegate.h"
 
 #include "apps/shell/shell_content_browser_client.h"
 #include "apps/shell/shell_content_client.h"
+#include "apps/shell/shell_content_renderer_client.h"
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/logging.h"
 #include "base/path_service.h"
+#include "chrome/common/chrome_paths.h"
 #include "content/public/browser/browser_main_runner.h"
+#include "content/public/common/content_switches.h"
+#include "extensions/common/extension_paths.h"
 #include "ui/base/resource/resource_bundle.h"
 
+#if defined(OS_CHROMEOS)
+#include "chromeos/chromeos_paths.h"
+#endif
+
 namespace {
 
 void InitLogging() {
   base::FilePath log_filename;
   PathService::Get(base::DIR_EXE, &log_filename);
   log_filename = log_filename.AppendASCII("app_shell.log");
   logging::LoggingSettings settings;
   settings.logging_dest = logging::LOG_TO_ALL;
   settings.log_file = log_filename.value().c_str();
   settings.delete_old = logging::DELETE_OLD_LOG_FILE;
   logging::InitLogging(settings);
   logging::SetLogItems(true, true, true, true);
 }
 
 }  // namespace
 
 namespace apps {
 
 ShellMainDelegate::ShellMainDelegate() {
 }
 
 ShellMainDelegate::~ShellMainDelegate() {
 }
 
 bool ShellMainDelegate::BasicStartupComplete(int* exit_code) {
   InitLogging();
   content_client_.reset(new ShellContentClient);
   SetContentClient(content_client_.get());
+
+  chrome::RegisterPathProvider();
+#if defined(OS_CHROMEOS)
+  chromeos::RegisterPathProvider();
+#endif
+  extensions::RegisterPathProvider();
   return false;
 }
 
 void ShellMainDelegate::PreSandboxStartup() {
-  InitializeResourceBundle();
+  std::string process_type =
+      CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
+          switches::kProcessType);
+  if (ProcessNeedsResourceBundle(process_type))
+    InitializeResourceBundle();
 }
 
 content::ContentBrowserClient* ShellMainDelegate::CreateContentBrowserClient() {
   browser_client_.reset(new apps::ShellContentBrowserClient);
   return browser_client_.get();
 }
 
 content::ContentRendererClient*
 ShellMainDelegate::CreateContentRendererClient() {
-  // TODO(jamescook): Create a ShellContentRendererClient with the extensions
-  // initialization pieces of ChromeContentRendererClient.
-  return content::ContentMainDelegate::CreateContentRendererClient();
+  renderer_client_.reset(new ShellContentRendererClient);
+  return renderer_client_.get();
+}
+
+// static
+bool ShellMainDelegate::ProcessNeedsResourceBundle(
+    const std::string& process_type) {
+  // Browser process has no process type.
+  if (process_type.empty())

[Yoyo Zhou, 2014/01/30 00:49:54]

nit: combine this with the below?

[James Cook, 2014/01/30 01:10:13]

Done.

+    return true;
+
+  // On Linux the zygote process opens the resources for the renderers.
+  return process_type == switches::kZygoteProcess ||
+         process_type == switches::kRendererProcess ||
+         process_type == switches::kUtilityProcess;
 }
 
 void ShellMainDelegate::InitializeResourceBundle() {
   ui::ResourceBundle::InitSharedInstanceWithLocale("en-US", NULL);
+
+  // The extensions system needs manifest data from the Chrome PAK file.
+  // TODO(jamescook): app_shell needs its own manifest data file.
+  base::FilePath resources_pack_path;
+  PathService::Get(chrome::FILE_RESOURCES_PACK, &resources_pack_path);
+  ResourceBundle::GetSharedInstance().AddDataPackFromPath(
+      resources_pack_path, ui::SCALE_FACTOR_NONE);
 }
 
 }  // namespace apps