predictors: Introduce GlowplugPredictor.

chrome/browser/predictors/resource_prefetch_predictor_android.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/predictors/resource_prefetch_predictor_android.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
-#include "chrome/browser/predictors/resource_prefetch_predictor.h"
-#include "chrome/browser/predictors/resource_prefetch_predictor_factory.h"
+
+#include "chrome/browser/predictors/loading_predictor.h"
+#include "chrome/browser/predictors/loading_predictor_factory.h"
+
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_android.h"
 #include "jni/ResourcePrefetchPredictor_jni.h"
 
 using base::android::JavaParamRef;
 using base::android::ScopedJavaLocalRef;
 
 namespace predictors {
 
 namespace {
-ResourcePrefetchPredictor* ResourcePrefetchPredictorFromProfileAndroid(
+LoadingPredictor* LoadingPredictorFromProfileAndroid(
     const JavaParamRef<jobject>& j_profile) {
   Profile* profile = ProfileAndroid::FromProfileAndroid(j_profile);
   if (!profile)
     return nullptr;
-  return ResourcePrefetchPredictorFactory::GetInstance()->GetForProfile(
-      profile);
+  return LoadingPredictorFactory::GetInstance()->GetForProfile(profile);
 }
 
 }  // namespace
 
 static jboolean StartInitialization(JNIEnv* env,
                                     const JavaParamRef<jclass>& clazz,
                                     const JavaParamRef<jobject>& j_profile) {
-  auto* predictor = ResourcePrefetchPredictorFromProfileAndroid(j_profile);
-  if (!predictor)
+  auto* loading_predictor = LoadingPredictorFromProfileAndroid(j_profile);
+  if (!loading_predictor)
     return false;
-  predictor->StartInitialization();
+  loading_predictor->resource_prefetch_predictor()->StartInitialization();
   return true;
 }
 
 static jboolean StartPrefetching(JNIEnv* env,
                                  const JavaParamRef<jclass>& clazz,
                                  const JavaParamRef<jobject>& j_profile,
                                  const JavaParamRef<jstring>& j_url) {
-  auto* predictor = ResourcePrefetchPredictorFromProfileAndroid(j_profile);
-  if (!predictor)
+  auto* loading_predictor = LoadingPredictorFromProfileAndroid(j_profile);
+  if (!loading_predictor)
     return false;
   GURL url = GURL(base::android::ConvertJavaStringToUTF16(env, j_url));
-  predictor->StartPrefetching(url, PrefetchOrigin::EXTERNAL);
+  loading_predictor->PrepareForPageLoad(url, HintOrigin::EXTERNAL);
 
   return true;
 }
 
 static jboolean StopPrefetching(JNIEnv* env,
                                 const JavaParamRef<jclass>& clazz,
                                 const JavaParamRef<jobject>& j_profile,
                                 const JavaParamRef<jstring>& j_url) {
-  auto* predictor = ResourcePrefetchPredictorFromProfileAndroid(j_profile);
-  if (!predictor)
+  auto* loading_predictor = LoadingPredictorFromProfileAndroid(j_profile);
+  if (!loading_predictor)
     return false;
   GURL url = GURL(base::android::ConvertJavaStringToUTF16(env, j_url));
-  predictor->StopPrefetching(url);
+  loading_predictor->CancelPageLoadHint(url);
 
   return true;
 }
 
 bool RegisterResourcePrefetchPredictor(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 }  // namespace predictors