Revert of 🍈 Unify application context usage.

mojo/android/javatests/src/org/chromium/mojo/MojoTestCase.java

Index: mojo/android/javatests/src/org/chromium/mojo/MojoTestCase.java
diff --git a/mojo/android/javatests/src/org/chromium/mojo/MojoTestCase.java b/mojo/android/javatests/src/org/chromium/mojo/MojoTestCase.java
index c7348caa2c080d6d4c9cc9b9ce0da2337d0da06e..3e81b7a8017b662d7b85f81d57ca6ee083e7bb10 100644
--- a/mojo/android/javatests/src/org/chromium/mojo/MojoTestCase.java
+++ b/mojo/android/javatests/src/org/chromium/mojo/MojoTestCase.java
@@ -4,7 +4,6 @@
 
 package org.chromium.mojo;
 
-import android.content.Context;
 import android.test.InstrumentationTestCase;
 
 import org.chromium.base.ContextUtils;
@@ -26,9 +25,9 @@
     @Override
     protected void setUp() throws Exception {
         super.setUp();
-        Context appContext = getInstrumentation().getTargetContext().getApplicationContext();
-        ContextUtils.initApplicationContext(appContext);
-        LibraryLoader.get(LibraryProcessType.PROCESS_BROWSER).ensureInitialized(appContext);
+        LibraryLoader.get(LibraryProcessType.PROCESS_BROWSER)
+                .ensureInitialized(getInstrumentation().getTargetContext());
+        ContextUtils.initApplicationContext(getInstrumentation().getTargetContext());
         nativeInit();
         mTestEnvironmentPointer = nativeSetupTestEnvironment();
     }