Make sure to add rescheduled message when we have unprocessed commands and there's no error.

content/common/gpu/gpu_channel.cc

Index: content/common/gpu/gpu_channel.cc
diff --git a/content/common/gpu/gpu_channel.cc b/content/common/gpu/gpu_channel.cc
index 143b0143b771ae032a2b12c1e33f53a9e1f75ca3..5568b17ddc83b8499f5a635f5a2ad1ea597e7eca 100644
--- a/content/common/gpu/gpu_channel.cc
+++ b/content/common/gpu/gpu_channel.cc
@@ -259,7 +259,7 @@ void GpuChannel::HandleMessage() {
       // message but still has more commands to process, synthesize an IPC
       // message to flush that command buffer.
       if (stub) {
-        if (!stub->IsScheduled() && stub->HasUnprocessedCommands()) {
+        if (stub->HasUnprocessedCommands()) {
           deferred_messages_.push_front(new GpuCommandBufferMsg_Rescheduled(
               stub->route_id()));
         }