Improve linearized pdf load/show time.

pdf/out_of_process_instance.cc

Index: pdf/out_of_process_instance.cc
diff --git a/pdf/out_of_process_instance.cc b/pdf/out_of_process_instance.cc
index 92511185c9715dd610adc6353cae440616666284..e8b5e1e20292f13306354d50a88ef562929ab234 100644
--- a/pdf/out_of_process_instance.cc
+++ b/pdf/out_of_process_instance.cc
@@ -852,15 +852,6 @@ void OutOfProcessInstance::DidOpen(int32_t result) {
     NOTREACHED();
     DocumentLoadFailed();
   }
-
-  // If it's a progressive load, cancel the stream URL request so that requests
-  // can be made on the original URL.
-  // TODO(raymes): Make this clearer once the in-process plugin is deleted.
-  if (engine_->IsProgressiveLoad()) {
-    pp::VarDictionary message;
-    message.Set(kType, kJSCancelStreamUrlType);
-    PostMessage(message);
-  }
 }
 
 void OutOfProcessInstance::DidOpenPreview(int32_t result) {
@@ -1485,6 +1476,12 @@ uint32_t OutOfProcessInstance::GetBackgroundColor() {
   return background_color_;
 }
 
+void OutOfProcessInstance::CancelBrowserDownload() {
+  pp::VarDictionary message;
+  message.Set(kType, kJSCancelStreamUrlType);
+  PostMessage(message);
+}
+
 void OutOfProcessInstance::IsSelectingChanged(bool is_selecting) {
   pp::VarDictionary message;
   message.Set(kType, kJSSetIsSelectingType);