Update chrome/ to use scoped_refptr<T>::get() rather than implicit "operator T*"

chrome/renderer/pepper/ppb_pdf_impl.cc

Index: chrome/renderer/pepper/ppb_pdf_impl.cc
diff --git a/chrome/renderer/pepper/ppb_pdf_impl.cc b/chrome/renderer/pepper/ppb_pdf_impl.cc
index 6cb3bbec6ee84db90c4d0dff514ae102be0787a0..e436a5fa04d514b82f63345613da2109ec24afe3 100644
--- a/chrome/renderer/pepper/ppb_pdf_impl.cc
+++ b/chrome/renderer/pepper/ppb_pdf_impl.cc
@@ -203,7 +203,7 @@ PP_Resource GetFontFileWithFallback(
 
   scoped_refptr<ppapi::StringVar> face_name(ppapi::StringVar::FromPPVar(
       description->face));
-  if (!face_name)
+  if (!face_name.get())
     return 0;
 
   int fd = content::MatchFontWithFallback(
@@ -322,7 +322,7 @@ void HistogramPDFPageCount(PP_Instance /*instance*/, int count) {
 void UserMetricsRecordAction(PP_Instance /*instance*/, PP_Var action) {
   scoped_refptr<ppapi::StringVar> action_str(
       ppapi::StringVar::FromPPVar(action));
-  if (action_str)
+  if (action_str.get())
     RenderThread::Get()->RecordUserMetrics(action_str->value());
 }
 
@@ -403,7 +403,7 @@ PP_Resource GetResourceImageForScale(PP_Instance instance_id,
     return 0;
   }
 
-  webkit::ppapi::ImageDataAutoMapper mapper(image_data);
+  webkit::ppapi::ImageDataAutoMapper mapper(image_data.get());
   if (!mapper.is_valid())
     return 0;