[OfflinePages] Adds StartImmediateProcessing() api to RequestCoordinator

chrome/browser/android/offline_pages/evaluation/offline_page_evaluation_bridge.cc

Index: chrome/browser/android/offline_pages/evaluation/offline_page_evaluation_bridge.cc
diff --git a/chrome/browser/android/offline_pages/evaluation/offline_page_evaluation_bridge.cc b/chrome/browser/android/offline_pages/evaluation/offline_page_evaluation_bridge.cc
index 4964b41713b9fe615d2ebc00a5a1d7239e2db27a..eb9b876e20d32d728090cecfc4485f2c6a461837 100644
--- a/chrome/browser/android/offline_pages/evaluation/offline_page_evaluation_bridge.cc
+++ b/chrome/browser/android/offline_pages/evaluation/offline_page_evaluation_bridge.cc
@@ -190,7 +190,7 @@ OfflinePageEvaluationBridge::GetTestingRequestCoordinator(
       base::MakeUnique<RequestCoordinator>(
           std::move(policy), std::move(prerenderer_offliner), std::move(queue),
           std::move(scheduler), network_quality_estimator);
-  request_coordinator->SetImmediateScheduleCallbackForTest(
+  request_coordinator->SetInternalStartProcessingCallbackForTest(
       base::Bind(&android::EvaluationTestScheduler::ImmediateScheduleCallback,
                  base::Unretained(scheduler.get())));