Revert 232547 "Pepper: Move FileIO host from renderer to browser."

trunk/src/content/browser/renderer_host/render_message_filter.cc

Index: trunk/src/content/browser/renderer_host/render_message_filter.cc
===================================================================
--- trunk/src/content/browser/renderer_host/render_message_filter.cc	(revision 233010)
+++ trunk/src/content/browser/renderer_host/render_message_filter.cc	(working copy)
@@ -389,6 +389,7 @@
                         OnDidDeleteOutOfProcessPepperInstance)
     IPC_MESSAGE_HANDLER(ViewHostMsg_OpenChannelToPpapiBroker,
                         OnOpenChannelToPpapiBroker)
+    IPC_MESSAGE_HANDLER(ViewHostMsg_AsyncOpenPepperFile, OnAsyncOpenPepperFile)
 #endif
     IPC_MESSAGE_HANDLER_GENERIC(ViewHostMsg_UpdateRect,
         render_widget_helper_->DidReceiveBackingStoreMsg(message))
@@ -439,6 +440,8 @@
   if (message.type() == ViewHostMsg_GetAudioHardwareConfig::ID)
     return audio_manager_->GetMessageLoop().get();
 #endif
+  if (message.type() == ViewHostMsg_AsyncOpenPepperFile::ID)
+    return BrowserThread::GetBlockingPool();
   return NULL;
 }
 
@@ -985,6 +988,33 @@
   Send(reply_msg);
 }
 
+void RenderMessageFilter::OnAsyncOpenPepperFile(int routing_id,
+                                                const base::FilePath& path,
+                                                int pp_open_flags) {
+  int platform_file_flags = 0;
+  if (!CanOpenWithPepperFlags(pp_open_flags, render_process_id_, path) ||
+      !ppapi::PepperFileOpenFlagsToPlatformFileFlags(
+          pp_open_flags, &platform_file_flags)) {
+    DLOG(ERROR) <<
+        "Bad pp_open_flags in ViewMsgHost_AsyncOpenPepperFile message: " <<
+        pp_open_flags;
+    RecordAction(UserMetricsAction("BadMessageTerminate_AOF"));
+    BadMessageReceived();
+    return;
+  }
+
+  base::PlatformFileError error_code = base::PLATFORM_FILE_OK;
+  base::PlatformFile file = base::CreatePlatformFile(
+      path, platform_file_flags, NULL, &error_code);
+  IPC::PlatformFileForTransit file_for_transit =
+      file != base::kInvalidPlatformFileValue ?
+          IPC::GetFileHandleForProcess(file, PeerHandle(), true) :
+          IPC::InvalidPlatformFileForTransit();
+
+  Send(new ViewMsg_AsyncOpenPepperFile_ACK(
+      routing_id, error_code, file_for_transit));
+}
+
 void RenderMessageFilter::OnMediaLogEvents(
     const std::vector<media::MediaLogEvent>& events) {
   if (media_internals_)