pdf: Use the default resource if high-dpi resources are unavailable.

pdf/instance.cc

Index: pdf/instance.cc
diff --git a/pdf/instance.cc b/pdf/instance.cc
index cda0c588a665b6a7d9579fa1770681d27461581d..1342864716989545448e6a146dac9cfdce1c8927 100644
--- a/pdf/instance.cc
+++ b/pdf/instance.cc
@@ -2504,10 +2504,13 @@ double Instance::CalculateZoom(uint32 control_id) const {
 }
 
 pp::ImageData Instance::CreateResourceImage(PP_ResourceImage image_id) {
+  pp::ImageData resource_data;
   if (hidpi_enabled_)
-    return pp::PDF::GetResourceImageForScale(this, image_id, device_scale_);
+    resource_data =

[Lei Zhang, 2014/08/20 04:21:17]

nit: braces around the if block body.

[sadrul, 2014/08/20 04:44:40]

Done.

+        pp::PDF::GetResourceImageForScale(this, image_id, device_scale_);
 
-  return pp::PDF::GetResourceImage(this, image_id);
+  return resource_data.data() ? resource_data
+                              : pp::PDF::GetResourceImage(this, image_id);
 }
 
 std::string Instance::GetLocalizedString(PP_ResourceString id) {