Convert calls to the utility process in extension code to use the zygote on Linux.

Exclude extension unpacking since it accesses the FS.

BUG=93109
TEST=Install an extension from the Web Store.


Review URL: http://codereview.chromium.org/8921023

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@114248 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/extensions/extension_management_api.cc

@@ -212,6 +212,7 @@ class SafeManifestJSONParser : public UtilityProcessHost::Client {
   void StartWorkOnIOThread() {
     CHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
     utility_host_ = new UtilityProcessHost(this, BrowserThread::IO);
+    utility_host_->set_use_linux_zygote(true);
     utility_host_->Send(new ChromeUtilityMsg_ParseJSON(manifest_));
   }
 

chrome/browser/extensions/extension_updater.cc

@@ -650,6 +650,7 @@ class SafeManifestParser : public UtilityProcessHost::Client {
     if (use_utility_process) {
       UtilityProcessHost* host = new UtilityProcessHost(
           this, BrowserThread::UI);
+      host->set_use_linux_zygote(true);
       host->Send(new ChromeUtilityMsg_ParseUpdateManifest(xml_));
     } else {
       UpdateManifest manifest;

chrome/browser/extensions/webstore_inline_installer.cc

@@ -73,6 +73,7 @@ class SafeWebstoreResponseParser : public UtilityProcessHost::Client {
   void StartWorkOnIOThread() {
     CHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
     utility_host_ = new UtilityProcessHost(this, BrowserThread::IO);
+    utility_host_->set_use_linux_zygote(true);
     utility_host_->Send(new ChromeUtilityMsg_ParseJSON(webstore_data_));
   }
 

chrome/browser/extensions/webstore_install_helper.cc

@@ -68,6 +68,7 @@ void WebstoreInstallHelper::Start() {
 void WebstoreInstallHelper::StartWorkOnIOThread() {
   CHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
   utility_host_ = new UtilityProcessHost(this, BrowserThread::IO);
+  utility_host_->set_use_linux_zygote(true);
   utility_host_->StartBatchMode();
 
   if (!icon_base64_data_.empty())