Remove app context init from LibraryLoader.

base/android/java/src/org/chromium/base/ContextUtils.java

 // 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.
 
 package org.chromium.base;
 
 import android.content.Context;
 import android.content.SharedPreferences;
 import android.preference.PreferenceManager;
 
@@ skipping 36 matching lines @@
      *
      * This should be called exactly once early on during startup, before native is loaded and
      * before any other clients make use of the application context through this class.
      *
      * @param appContext The application context.
      */
     public static void initApplicationContext(Context appContext) {
         // Conceding that occasionally in tests, native is loaded before the browser process is
         // started, in which case the browser process re-sets the application context.
         if (sApplicationContext != null && sApplicationContext != appContext) {
-            // For webview, sometimes the client app overrides getApplicationContext in a poor way
-            // and fails to make it idempotent. We cannot crash in this scenario, so we ignore new
-            // assignments and assume that the first initialized context is the right application
-            // object. See http://crbug.com/637389.
-            // TODO(wnwen): Add runtime exception back once the underlying issue in LibraryLoader is
-            //     fixed.
-            Log.d(TAG, "Multiple contexts detected, ignoring new application context.");
-            return;
+            throw new RuntimeException("Attempting to set multiple global application contexts.");
         }
         initJavaSideApplicationContext(appContext);
     }
 
     /**
      * Initialize the native Android application context to be the same as the java counter-part.
      */
     public static void initApplicationContextForNative() {
         if (sApplicationContext == null) {
             throw new RuntimeException("Cannot have native global application context be null.");
@@ skipping 36 matching lines @@
 
     private static void initJavaSideApplicationContext(Context appContext) {
         if (appContext == null) {
             throw new RuntimeException("Global application context cannot be set to null.");
         }
         sApplicationContext = appContext;
     }
 
     private static native void nativeInitNativeSideApplicationContext(Context appContext);
 }