Use new app-level object instantiation mechanism

chrome/android/java/src/org/chromium/chrome/browser/ChromeActivity.java

Index: chrome/android/java/src/org/chromium/chrome/browser/ChromeActivity.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/ChromeActivity.java b/chrome/android/java/src/org/chromium/chrome/browser/ChromeActivity.java
index 1e8816779e1bb3be30af768b3f5727e21768e25a..b1d1ace487c77ae459c535c48801f1bf95f666f6 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/ChromeActivity.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/ChromeActivity.java
@@ -77,6 +77,7 @@ import org.chromium.chrome.browser.firstrun.ForcedSigninProcessor;
 import org.chromium.chrome.browser.fullscreen.ChromeFullscreenManager;
 import org.chromium.chrome.browser.gsa.ContextReporter;
 import org.chromium.chrome.browser.gsa.GSAAccountChangeListener;
+import org.chromium.chrome.browser.gsa.GSAHelper;
 import org.chromium.chrome.browser.gsa.GSAState;
 import org.chromium.chrome.browser.help.HelpAndFeedback;
 import org.chromium.chrome.browser.history.HistoryManagerUtils;
@@ -735,8 +736,8 @@ public abstract class ChromeActivity extends AsyncInitializationActivity
 
         if (syncController != null && syncController.isSyncingUrlsWithKeystorePassphrase()) {
             assert syncService != null;
-            mContextReporter = ((ChromeApplication) getApplicationContext()).createGsaHelper()
-                    .getContextReporter(this);
+            mContextReporter =
+                    ChromeApplication.createObject(GSAHelper.class).getContextReporter(this);
 
             if (mSyncStateChangedListener != null) {
                 syncService.removeSyncStateChangedListener(mSyncStateChangedListener);