Avoid matching system locales in locale negotiation

Also:
1. Add AssetManager method for finding non-system locales: This is
used in per-app locale negotiation. (Normally,
AssetManager#getLocales() returns both system and non-system
locales.)

2. Match pseudolocales correctly in locale negotiation.

Bug: 25800576
Bug: 26236938
Change-Id: I116caf3a91c290deb4ad68b291c65b7035b18dd4
diff --git a/include/androidfw/AssetManager.h b/include/androidfw/AssetManager.h
index 3d4e47d..914ac3d 100644
--- a/include/androidfw/AssetManager.h
+++ b/include/androidfw/AssetManager.h
@@ -100,16 +100,17 @@
      * then on success, *cookie is set to the value corresponding to the
      * newly-added asset source.
      */
-    bool addAssetPath(const String8& path, int32_t* cookie, bool appAsLib=false);
+    bool addAssetPath(const String8& path, int32_t* cookie,
+        bool appAsLib=false, bool isSystemAsset=false);
     bool addOverlayPath(const String8& path, int32_t* cookie);
 
-    /*                                                                       
+    /*
      * Convenience for adding the standard system assets.  Uses the
      * ANDROID_ROOT environment variable to find them.
      */
     bool addDefaultAssets();
 
-    /*                                                                       
+    /*
      * Iterate over the asset paths in this manager.  (Previously
      * added via addAssetPath() and addDefaultAssets().)  On first call,
      * 'cookie' must be 0, resulting in the first cookie being returned.
@@ -118,7 +119,7 @@
      */
     int32_t nextAssetPath(const int32_t cookie) const;
 
-    /*                                                                       
+    /*
      * Return an asset path in the manager.  'which' must be between 0 and
      * countAssetPaths().
      */
@@ -221,11 +222,11 @@
      * the current data.
      */
     bool isUpToDate();
-    
+
     /**
      * Get the known locales for this asset manager object.
      */
-    void getLocales(Vector<String8>* locales) const;
+    void getLocales(Vector<String8>* locales, bool includeSystemLocales=true) const;
 
     /**
      * Generate idmap data to translate resources IDs between a package and a
@@ -237,11 +238,13 @@
 private:
     struct asset_path
     {
-        asset_path() : path(""), type(kFileTypeRegular), idmap(""), isSystemOverlay(false) {}
+        asset_path() : path(""), type(kFileTypeRegular), idmap(""),
+                       isSystemOverlay(false), isSystemAsset(false) {}
         String8 path;
         FileType type;
         String8 idmap;
         bool isSystemOverlay;
+        bool isSystemAsset;
     };
 
     Asset* openInPathLocked(const char* fileName, AccessMode mode,
diff --git a/include/androidfw/ResourceTypes.h b/include/androidfw/ResourceTypes.h
index 49b6333..428a2b8 100644
--- a/include/androidfw/ResourceTypes.h
+++ b/include/androidfw/ResourceTypes.h
@@ -1552,9 +1552,9 @@
 
     status_t add(Asset* asset, const int32_t cookie=-1, bool copyData=false);
     status_t add(Asset* asset, Asset* idmapAsset, const int32_t cookie=-1, bool copyData=false,
-            bool appAsLib=false);
+            bool appAsLib=false, bool isSystemAsset=false);
 
-    status_t add(ResTable* src);
+    status_t add(ResTable* src, bool isSystemAsset=false);
     status_t addEmpty(const int32_t cookie);
 
     status_t getError() const;
@@ -1822,9 +1822,9 @@
 
     // Return the configurations (ResTable_config) that we know about
     void getConfigurations(Vector<ResTable_config>* configs, bool ignoreMipmap=false,
-            bool ignoreAndroidPackage=false) const;
+            bool ignoreAndroidPackage=false, bool includeSystemConfigs=true) const;
 
-    void getLocales(Vector<String8>* locales) const;
+    void getLocales(Vector<String8>* locales, bool includeSystemLocales=true) const;
 
     // Generate an idmap.
     //
@@ -1860,7 +1860,7 @@
     typedef Vector<Type*> TypeList;
 
     status_t addInternal(const void* data, size_t size, const void* idmapData, size_t idmapDataSize,
-            bool appAsLib, const int32_t cookie, bool copyData);
+            bool appAsLib, const int32_t cookie, bool copyData, bool isSystemAsset=false);
 
     ssize_t getResourcePackageIndex(uint32_t resID) const;
 
@@ -1873,10 +1873,11 @@
             size_t nameLen, uint32_t* outTypeSpecFlags) const;
 
     status_t parsePackage(
-        const ResTable_package* const pkg, const Header* const header, bool appAsLib);
+        const ResTable_package* const pkg, const Header* const header,
+        bool appAsLib, bool isSystemAsset);
 
     void print_value(const Package* pkg, const Res_value& value) const;
-    
+
     mutable Mutex               mLock;
 
     status_t                    mError;