MAGETWO-38178: Check if Theme in use

 - code style issues fixed.

Author: Fred Sung

app/code/Magento/Theme/Model/ThemeValidator.php

@@ -48,8 +48,7 @@ public function __construct(
         StoreManagerInterface $storeManager,
         ThemeProviderInterface $themeProvider,
         ValueInterface $configData
-    )
-    {
+    ) {
         $this->storeManager = $storeManager;
         $this->themeProvider = $themeProvider;
         $this->configData = $configData;
@@ -89,4 +88,4 @@ public function validateIsThemeInUse($themePaths)
         }
         return $messages;
     }
-}
+}

app/code/Magento/Theme/Test/Unit/Console/Command/ThemeUninstallCommandTest.php

@@ -105,7 +105,7 @@ public function setUp()
             '',
             false
         );
-        $this->themeValidator = $this->getMock('Magento\Theme\Model\ThemeValidator',[], [], '', false);
+        $this->themeValidator = $this->getMock('Magento\Theme\Model\ThemeValidator', [], [], '', false);
         $this->command = new ThemeUninstallCommand(
             $this->cache,
             $this->cleanupFiles,

app/code/Magento/Theme/Test/Unit/Model/ThemeValidatorTest.php

@@ -35,7 +35,11 @@ protected function setUp()
     {
         $this->storeManager = $this->getMock('Magento\Store\Model\StoreManagerInterface', [], [], '', false);
         $this->themeProvider = $this->getMock(
-            'Magento\Framework\View\Design\Theme\ThemeProviderInterface', [], [], '', false
+            'Magento\Framework\View\Design\Theme\ThemeProviderInterface',
+            [],
+            [],
+            '',
+            false
         );
         $this->configData = $this->getMock(
             'Magento\Framework\App\Config\Value',