Update the serializer to use directly the json version and not just asking for the interface

Author: dmanners

app/code/Magento/Checkout/Block/Cart/Shipping.php

@@ -21,7 +21,7 @@ class Shipping extends \Magento\Checkout\Block\Cart\AbstractCart
     protected $layoutProcessors;
 
     /**
-     * @var \Magento\Framework\Serialize\SerializerInterface
+     * @var \Magento\Framework\Serialize\Serializer\Json
      */
     private $serializer;
 
@@ -31,7 +31,7 @@ class Shipping extends \Magento\Checkout\Block\Cart\AbstractCart
      * @param \Magento\Checkout\Model\Session $checkoutSession
      * @param \Magento\Checkout\Model\CompositeConfigProvider $configProvider
      * @param array $layoutProcessors
-     * @param \Magento\Framework\Serialize\SerializerInterface|null $serializer
+     * @param \Magento\Framework\Serialize\Serializer\Json|null $serializer
      * @param array $data
      * @throws \RuntimeException
      */
@@ -41,15 +41,15 @@ public function __construct(
         \Magento\Checkout\Model\Session $checkoutSession,
         \Magento\Checkout\Model\CompositeConfigProvider $configProvider,
         array $layoutProcessors = [],
-        \Magento\Framework\Serialize\SerializerInterface $serializer = null,
+        \Magento\Framework\Serialize\Serializer\Json $serializer = null,
         array $data = []
     ) {
         $this->configProvider = $configProvider;
         $this->layoutProcessors = $layoutProcessors;
         parent::__construct($context, $customerSession, $checkoutSession, $data);
         $this->_isScopePrivate = true;
         $this->serializer = $serializer ?: \Magento\Framework\App\ObjectManager::getInstance()
-            ->get(\Magento\Framework\Serialize\SerializerInterface::class);
+            ->get(\Magento\Framework\Serialize\Serializer\Json::class);
     }
 
     /**

app/code/Magento/Checkout/Block/Cart/Sidebar.php

@@ -28,7 +28,7 @@ class Sidebar extends AbstractCart
     protected $imageHelper;
 
     /**
-     * @var \Magento\Framework\Serialize\SerializerInterface
+     * @var \Magento\Framework\Serialize\Serializer\Json
      */
     private $serializer;
 
@@ -38,16 +38,17 @@ class Sidebar extends AbstractCart
      * @param \Magento\Checkout\Model\Session $checkoutSession
      * @param \Magento\Catalog\Helper\Image $imageHelper
      * @param \Magento\Customer\CustomerData\JsLayoutDataProviderPoolInterface $jsLayoutDataProvider
+     * @param \Magento\Framework\Serialize\Serializer\Json|null $serializer
      * @param array $data
-     * @codeCoverageIgnore
+     * @throws \RuntimeException
      */
     public function __construct(
         \Magento\Framework\View\Element\Template\Context $context,
         \Magento\Customer\Model\Session $customerSession,
         \Magento\Checkout\Model\Session $checkoutSession,
         \Magento\Catalog\Helper\Image $imageHelper,
         \Magento\Customer\CustomerData\JsLayoutDataProviderPoolInterface $jsLayoutDataProvider,
-        \Magento\Framework\Serialize\SerializerInterface $serializer = null,
+        \Magento\Framework\Serialize\Serializer\Json $serializer = null,
         array $data = []
     ) {
         if (isset($data['jsLayout'])) {
@@ -60,7 +61,7 @@ public function __construct(
         $this->_isScopePrivate = false;
         $this->imageHelper = $imageHelper;
         $this->serializer = $serializer ?: \Magento\Framework\App\ObjectManager::getInstance()
-            ->get(\Magento\Framework\Serialize\SerializerInterface::class);
+            ->get(\Magento\Framework\Serialize\Serializer\Json::class);
     }
 
     /**

app/code/Magento/Checkout/Block/Onepage.php

@@ -37,7 +37,7 @@ class Onepage extends \Magento\Framework\View\Element\Template
     protected $layoutProcessors;
 
     /**
-     * @var \Magento\Framework\Serialize\SerializerInterface
+     * @var \Magento\Framework\Serialize\Serializer\Json
      */
     private $serializer;
 
@@ -46,7 +46,7 @@ class Onepage extends \Magento\Framework\View\Element\Template
      * @param \Magento\Framework\Data\Form\FormKey $formKey
      * @param \Magento\Checkout\Model\CompositeConfigProvider $configProvider
      * @param array $layoutProcessors
-     * @param \Magento\Framework\Serialize\SerializerInterface|null $serializer
+     * @param \Magento\Framework\Serialize\Serializer\Json|null $serializer
      * @param array $data
      * @throws \RuntimeException
      */
@@ -55,7 +55,7 @@ public function __construct(
         \Magento\Framework\Data\Form\FormKey $formKey,
         \Magento\Checkout\Model\CompositeConfigProvider $configProvider,
         array $layoutProcessors = [],
-        \Magento\Framework\Serialize\SerializerInterface $serializer = null,
+        \Magento\Framework\Serialize\Serializer\Json $serializer = null,
         array $data = []
     ) {
         parent::__construct($context, $data);
@@ -65,7 +65,7 @@ public function __construct(
         $this->configProvider = $configProvider;
         $this->layoutProcessors = $layoutProcessors;
         $this->serializer = $serializer ?: \Magento\Framework\App\ObjectManager::getInstance()
-            ->get(\Magento\Framework\Serialize\SerializerInterface::class);
+            ->get(\Magento\Framework\Serialize\Serializer\Json::class);
     }
 
     /**

app/code/Magento/Checkout/Test/Unit/Block/Cart/ShippingTest.php

@@ -74,7 +74,7 @@ protected function setUp()
 
         $this->storeManager = $this->getMock(\Magento\Store\Model\StoreManagerInterface::class);
         $this->context->expects($this->once())->method('getStoreManager')->willReturn($this->storeManager);
-        $this->serializer = $this->getMock(\Magento\Framework\Serialize\SerializerInterface::class,[],[],'',false);
+        $this->serializer = $this->getMock(\Magento\Framework\Serialize\Serializer\Json::class,[],[],'',false);
 
         $this->model = new \Magento\Checkout\Block\Cart\Shipping(
             $this->context,

app/code/Magento/Checkout/Test/Unit/Block/Cart/SidebarTest.php

@@ -99,7 +99,7 @@ protected function setUp()
             ->method('getRequest')
             ->will($this->returnValue($this->requestMock));
 
-        $this->serializer = $this->getMock(\Magento\Framework\Serialize\SerializerInterface::class,[],[],'',false);
+        $this->serializer = $this->getMock(\Magento\Framework\Serialize\Serializer\Json::class,[],[],'',false);
 
         $this->model = $this->_objectManager->getObject(
             \Magento\Checkout\Block\Cart\Sidebar::class,

app/code/Magento/Checkout/Test/Unit/Block/OnepageTest.php

@@ -59,7 +59,7 @@ protected function setUp()
             false
         );
 
-        $this->serializer = $this->getMock(\Magento\Framework\Serialize\SerializerInterface::class,[],[],'',false);
+        $this->serializer = $this->getMock(\Magento\Framework\Serialize\Serializer\Json::class,[],[],'',false);
 
         $this->model = new \Magento\Checkout\Block\Onepage(
             $contextMock,