Convert Android WebView to store locale .pak files as res/raw resources

ui/base/resource/resource_bundle_android.h

Index: ui/base/resource/resource_bundle_android.h
diff --git a/ui/base/resource/resource_bundle_android.h b/ui/base/resource/resource_bundle_android.h
index 213753e5684fbd6d2fbb841e51e2695e20de2839..17e1bd2e9256f24dc39b72e0f84f94abb2271492 100644
--- a/ui/base/resource/resource_bundle_android.h
+++ b/ui/base/resource/resource_bundle_android.h
@@ -28,8 +28,11 @@ UI_BASE_EXPORT int GetMainAndroidPackFd(
 UI_BASE_EXPORT int GetCommonResourcesPackFd(
     base::MemoryMappedFile::Region* out_region);
 
-// Checks whether the locale data pak is contained within the .apk.
-bool AssetContainedInApk(const std::string& filename);
+// Returns the path within the apk for the given locale's .pak file, or an
+// empty string if it doesn't exist.
+// Only locale paks for the active Android language can be retrieved.
+UI_BASE_EXPORT std::string GetPathForAndroidLocalePakWithinApk(
+    const std::string& locale);
 
 bool RegisterResourceBundleAndroid(JNIEnv* env);