Revert of Android: Remove GetApplicationContext part 2

chrome/android/java/src/org/chromium/chrome/browser/signin/SigninManager.java

Index: chrome/android/java/src/org/chromium/chrome/browser/signin/SigninManager.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/signin/SigninManager.java b/chrome/android/java/src/org/chromium/chrome/browser/signin/SigninManager.java
index 7adf8f3fe38a6ac120234f100a7d9933a91240c6..dc4aef64020d8e51cce40ccffc7b6a199a930954 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/signin/SigninManager.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/signin/SigninManager.java
@@ -199,7 +199,7 @@
         mNativeSigninManagerAndroid = nativeInit();
         mSigninAllowedByPolicy = nativeIsSigninAllowedByPolicy(mNativeSigninManagerAndroid);
 
-        AccountTrackerService.get().addSystemAccountsSeededListener(this);
+        AccountTrackerService.get(mContext).addSystemAccountsSeededListener(this);
     }
 
     /**
@@ -236,7 +236,8 @@
      */
     public boolean isSignInAllowed() {
         return !mFirstRunCheckIsPending && mSignInState == null && mSigninAllowedByPolicy
-                && ChromeSigninController.get().getSignedInUser() == null && isSigninSupported();
+                && ChromeSigninController.get(mContext).getSignedInUser() == null
+                && isSigninSupported();
     }
 
     /**
@@ -366,7 +367,7 @@
      */
     public void signIn(String accountName, @Nullable final Activity activity,
             @Nullable final SignInCallback callback) {
-        AccountManagerHelper.get().getAccountFromName(accountName, new Callback<Account>() {
+        AccountManagerHelper.get(mContext).getAccountFromName(accountName, new Callback<Account>() {
             @Override
             public void onResult(Account account) {
                 signIn(account, activity, callback);
@@ -375,9 +376,9 @@
     }
 
     private void progressSignInFlowSeedSystemAccounts() {
-        if (AccountTrackerService.get().checkAndSeedSystemAccounts()) {
+        if (AccountTrackerService.get(mContext).checkAndSeedSystemAccounts()) {
             progressSignInFlowCheckPolicy();
-        } else if (AccountIdProvider.getInstance().canBeUsed()) {
+        } else if (AccountIdProvider.getInstance().canBeUsed(mContext)) {
             mSignInState.blockedOnAccountSeeding = true;
         } else {
             Activity activity = mSignInState.activity;
@@ -452,7 +453,7 @@
 
         // Cache the signed-in account name. This must be done after the native call, otherwise
         // sync tries to start without being signed in natively and crashes.
-        ChromeSigninController.get().setSignedInAccountName(mSignInState.account.name);
+        ChromeSigninController.get(mContext).setSignedInAccountName(mSignInState.account.name);
         AndroidSyncSettings.updateAccount(mContext, mSignInState.account);
 
         if (mSignInState.callback != null) {
@@ -532,7 +533,7 @@
         // Native signout must happen before resetting the account so data is deleted correctly.
         // http://crbug.com/589028
         nativeSignOut(mNativeSigninManagerAndroid);
-        ChromeSigninController.get().setSignedInAccountName(null);
+        ChromeSigninController.get(mContext).setSignedInAccountName(null);
         AndroidSyncSettings.updateAccount(mContext, null);
 
         if (wipeData) {
@@ -541,7 +542,7 @@
             onSignOutDone();
         }
 
-        AccountTrackerService.get().invalidateAccountSeedStatus(true);
+        AccountTrackerService.get(mContext).invalidateAccountSeedStatus(true);
     }
 
     /**