Reland the changes to use command line switch to turn on worker feature.

Review URL: http://codereview.chromium.org/48106

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@11975 0039d316-1c4b-4281-b951-d872f2087c98

4 files changed, 10 insertions, 0 deletions

diff --git a/chrome/browser/renderer_host/browser_render_process_host.cc b/chrome/browser/renderer_host/browser_render_process_host.cc
index 7aeb243..8155b4e 100644
--- a/chrome/browser/renderer_host/browser_render_process_host.cc
+++ b/chrome/browser/renderer_host/browser_render_process_host.cc
@@ -267,6 +267,7 @@ bool BrowserRenderProcessHost::Init() {
     switches::kDisablePopupBlocking,
     switches::kUseLowFragHeapCrt,
     switches::kEnableVideo,
+    switches::kEnableWebWorkers,
   };
 
   for (size_t i = 0; i < arraysize(switch_names); ++i) {
diff --git a/chrome/common/chrome_switches.cc b/chrome/common/chrome_switches.cc
index 0a101b4..09755c9d 100644
--- a/chrome/common/chrome_switches.cc
+++ b/chrome/common/chrome_switches.cc
@@ -403,4 +403,7 @@ const wchar_t kIPCUseFIFO[]                    = L"ipc-use-fifo";
 // Console Debugger when user clicks "Debug JavaScript".
 const wchar_t kEnableOutOfProcessDevTools[]    = L"enable-oop-devtools";
 
+// Enable HTML5 Worker support
+const wchar_t kEnableWebWorkers[]              = L"enable-web-workers";
+
 }  // namespace switches
diff --git a/chrome/common/chrome_switches.h b/chrome/common/chrome_switches.h
index cd78d00..ea5909b 100644
--- a/chrome/common/chrome_switches.h
+++ b/chrome/common/chrome_switches.h
@@ -155,6 +155,8 @@ extern const wchar_t kIPCUseFIFO[];
 
 extern const wchar_t kEnableOutOfProcessDevTools[];
 
+extern const wchar_t kEnableWebWorkers[];
+
 }  // namespace switches
 
 #endif  // CHROME_COMMON_CHROME_SWITCHES_H__
diff --git a/chrome/renderer/render_thread.cc b/chrome/renderer/render_thread.cc
index 846e866..46d7e0a 100644
--- a/chrome/renderer/render_thread.cc
+++ b/chrome/renderer/render_thread.cc
@@ -252,4 +252,8 @@ void RenderThread::EnsureWebKitInitialized() {
       command_line.HasSwitch(switches::kRecordMode)) {
     WebKit::registerExtension(extensions_v8::PlaybackExtension::Get());
   }
+
+  if (command_line.HasSwitch(switches::kEnableWebWorkers)) {
+    WebKit::enableWebWorkers(true);
+  }
 }