content: Fix typo from r175076 causing GL_CHROMIUM_texture_from_image not to work correctly.

content/browser/gpu/gpu_process_host.cc

Index: content/browser/gpu/gpu_process_host.cc
diff --git a/content/browser/gpu/gpu_process_host.cc b/content/browser/gpu/gpu_process_host.cc
index cb2c9f54fbbbefe7f700956dbba48e78ff9ccaab..d6e6632f053c96eb3160cc2bd853b7c0062938d9 100644
--- a/content/browser/gpu/gpu_process_host.cc
+++ b/content/browser/gpu/gpu_process_host.cc
@@ -688,7 +688,7 @@ void GpuProcessHost::OnDestroyCommandBuffer(int32 surface_id) {
 void GpuProcessHost::OnImageCreated(const gfx::Size size) {
   TRACE_EVENT0("gpu", "GpuProcessHost::OnImageCreated");
 
-  if (!create_image_requests_.empty())
+  if (create_image_requests_.empty())
     return;
 
   CreateImageCallback callback = create_image_requests_.front();