Add Data Saver support to Cronet

components/cronet/android/cronet_pref_store.h

Index: components/cronet/android/cronet_pref_store.h
diff --git a/android_webview/browser/aw_pref_store.h b/components/cronet/android/cronet_pref_store.h
similarity index 70%
copy from android_webview/browser/aw_pref_store.h
copy to components/cronet/android/cronet_pref_store.h
index 6935c7190a864dd91a18c0d5d99fb386915a552f..f229b79e6ccd64cce9423c019640bc6155168828 100644
--- a/android_webview/browser/aw_pref_store.h
+++ b/components/cronet/android/cronet_pref_store.h
@@ -1,9 +1,9 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
+// Copyright 2015 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.
 
-#ifndef ANDROID_WEBVIEW_BROWSER_AW_PREF_STORE_H_
-#define ANDROID_WEBVIEW_BROWSER_AW_PREF_STORE_H_
+#ifndef COMPONENTS_CRONET_ANDROID_CRONET_PREF_STORE_H_
+#define COMPONENTS_CRONET_ANDROID_CRONET_PREF_STORE_H_
 
 #include <string>
 
@@ -17,11 +17,11 @@
 // in a memory backed store. This is not a persistent prefstore -- we
 // subclass the PersistentPrefStore here since it is needed by the
 // PrefService, which in turn is needed by the Autofill component.
-class AwPrefStore : public PersistentPrefStore {
+class CronetPrefStore : public PersistentPrefStore {

[mmenke, 2015/03/10 15:33:16]

Can't we just use ValueMapPrefStore?

[bengr, 2015/03/10 23:43:31]

No, because of this:
https://code.google.com/p/chromium/codesearch#chromium/src/base/prefs/pref_se...

  public:
-  AwPrefStore();
+  CronetPrefStore();
 
-  // Overriden from PrefStore.
+  // Overrides from PrefStore:
   bool GetValue(const std::string& key,
                 const base::Value** result) const override;
   void AddObserver(PrefStore::Observer* observer) override;
@@ -30,10 +30,12 @@ class AwPrefStore : public PersistentPrefStore {
   bool IsInitializationComplete() const override;
 
   // PersistentPrefStore overrides:
-  bool GetMutableValue(const std::string& key, base::Value** result) override;
+  bool GetMutableValue(const std::string& key,
+                       base::Value** result) override;
   void ReportValueChanged(const std::string& key) override;
   void SetValue(const std::string& key, base::Value* value) override;
-  void SetValueSilently(const std::string& key, base::Value* value) override;
+  void SetValueSilently(const std::string& key,
+                                base::Value* value) override;
   void RemoveValue(const std::string& key) override;
   bool ReadOnly() const override;
   PrefReadError GetReadError() const override;
@@ -42,7 +44,7 @@ class AwPrefStore : public PersistentPrefStore {
   void CommitPendingWrite() override {}
 
  protected:
-  ~AwPrefStore() override;
+  ~CronetPrefStore() override;
 
  private:
   // Stores the preference values.
@@ -50,7 +52,7 @@ class AwPrefStore : public PersistentPrefStore {
 
   ObserverList<PrefStore::Observer, true> observers_;
 
-  DISALLOW_COPY_AND_ASSIGN(AwPrefStore);
+  DISALLOW_COPY_AND_ASSIGN(CronetPrefStore);
 };
 
-#endif  // ANDROID_WEBVIEW_BROWSER_AW_PREF_STORE_H_
+#endif  // COMPONENTS_CRONET_ANDROID_CRONET_PREF_STORE_H_