Always get device conditions from Java for every attempt.

components/offline_pages/core/background/scheduler.h

Index: components/offline_pages/core/background/scheduler.h
diff --git a/components/offline_pages/core/background/scheduler.h b/components/offline_pages/core/background/scheduler.h
index 7ce0a456e6ef6523e013fe6b2f08b1208084ba3e..818c216df06f209d3cc3abf4cf4b74f57efd6d5d 100644
--- a/components/offline_pages/core/background/scheduler.h
+++ b/components/offline_pages/core/background/scheduler.h
@@ -5,6 +5,8 @@
 #ifndef COMPONENTS_OFFLINE_PAGES_CORE_BACKGROUND_SCHEDULER_H_
 #define COMPONENTS_OFFLINE_PAGES_CORE_BACKGROUND_SCHEDULER_H_
 
+#include "components/offline_pages/core/background/device_conditions.h"
+
 namespace offline_pages {
 
 // Interface of a class responsible for scheduling a task to initiate
@@ -40,6 +42,9 @@ class Scheduler {
 
   // Unschedules the currently scheduled task, if any.
   virtual void Unschedule() = 0;
+
+  // Get the current device conditions from the android APIs.
+  virtual const DeviceConditions& GetCurrentDeviceConditions() = 0;
 };
 
 }  // namespace offline_pages