Pepper: Move FileIO host from renderer to browser.

content/browser/renderer_host/pepper/pepper_file_ref_host.cc

Index: content/browser/renderer_host/pepper/pepper_file_ref_host.cc
diff --git a/content/browser/renderer_host/pepper/pepper_file_ref_host.cc b/content/browser/renderer_host/pepper/pepper_file_ref_host.cc
index f0fbbd1f79644fc7e89bed6a8b180d431488f761..a14e9cc5c83d9152229f4f987cbe20eda6b9d89b 100644
--- a/content/browser/renderer_host/pepper/pepper_file_ref_host.cc
+++ b/content/browser/renderer_host/pepper/pepper_file_ref_host.cc
@@ -53,15 +53,15 @@ PepperFileRefHost::PepperFileRefHost(BrowserPpapiHost* host,
     return;
   }
 
-  PepperFileSystemBrowserHost* fs_host = NULL;
   if (fs_resource_host->IsFileSystemHost())
-    fs_host = static_cast<PepperFileSystemBrowserHost*>(fs_resource_host);
-  if (fs_host == NULL) {
+    file_system_host_ = static_cast<PepperFileSystemBrowserHost*>(
+        fs_resource_host)->AsWeakPtr();
+  if (file_system_host_ == NULL) {
     DLOG(ERROR) << "Filesystem PP_Resource is not PepperFileSystemBrowserHost";
     return;
   }
 
-  fs_type_ = fs_host->GetType();
+  fs_type_ = file_system_host_->GetType();
   if ((fs_type_ != PP_FILESYSTEMTYPE_LOCALPERSISTENT) &&
       (fs_type_ != PP_FILESYSTEMTYPE_LOCALTEMPORARY) &&
       (fs_type_ != PP_FILESYSTEMTYPE_ISOLATED)) {
@@ -72,7 +72,7 @@ PepperFileRefHost::PepperFileRefHost(BrowserPpapiHost* host,
   backend_.reset(new PepperInternalFileRefBackend(
       host->GetPpapiHost(),
       render_process_id,
-      base::AsWeakPtr(fs_host),
+      file_system_host_,
       path));
 }