Reland "Android: Remove GetApplicationContext part 2"

chrome/android/java/src/org/chromium/chrome/browser/media/router/cast/CreateRouteRequest.java

Index: chrome/android/java/src/org/chromium/chrome/browser/media/router/cast/CreateRouteRequest.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/media/router/cast/CreateRouteRequest.java b/chrome/android/java/src/org/chromium/chrome/browser/media/router/cast/CreateRouteRequest.java
index 7b7736e430d7d70d440526e8155130b78dbcb1d9..ed6bafeea171b1422802641f910f75e2ed6a3a16 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/media/router/cast/CreateRouteRequest.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/media/router/cast/CreateRouteRequest.java
@@ -5,7 +5,6 @@
 package org.chromium.chrome.browser.media.router.cast;
 
 import android.annotation.SuppressLint;
-import android.content.Context;
 import android.os.Bundle;
 
 import com.google.android.gms.cast.ApplicationMetadata;
@@ -18,6 +17,7 @@ import com.google.android.gms.common.api.PendingResult;
 import com.google.android.gms.common.api.ResultCallback;
 import com.google.android.gms.common.api.Status;
 
+import org.chromium.base.ContextUtils;
 import org.chromium.base.Log;
 import org.chromium.chrome.browser.media.router.ChromeMediaRouter;
 import org.chromium.chrome.browser.media.router.MediaRoute;
@@ -164,15 +164,11 @@ public class CreateRouteRequest implements GoogleApiClient.ConnectionCallbacks,
 
     /**
      * Starts the process of launching the application on the Cast device.
-     * @param applicationContext application context
-     * implementation provided by the caller.
      */
-    public void start(Context applicationContext) {
-        assert applicationContext != null;
-
+    public void start() {
         if (mState != STATE_IDLE) throwInvalidState();
 
-        mApiClient = createApiClient(mCastListener, applicationContext);
+        mApiClient = createApiClient(mCastListener);
         mApiClient.connect();
         mState = STATE_CONNECTING_TO_API;
     }
@@ -233,13 +229,13 @@ public class CreateRouteRequest implements GoogleApiClient.ConnectionCallbacks,
         reportError();
     }
 
-    private GoogleApiClient createApiClient(Cast.Listener listener, Context context) {
+    private GoogleApiClient createApiClient(Cast.Listener listener) {
         Cast.CastOptions.Builder apiOptionsBuilder =
                 new Cast.CastOptions.Builder(mSink.getDevice(), listener)
                          // TODO(avayvod): hide this behind the flag or remove
                          .setVerboseLoggingEnabled(true);
 
-        return new GoogleApiClient.Builder(context)
+        return new GoogleApiClient.Builder(ContextUtils.getApplicationContext())
                 .addApi(Cast.API, apiOptionsBuilder.build())
                 .addConnectionCallbacks(this)
                 .addOnConnectionFailedListener(this)