Remove protected methods that no longer have callers.

Remove duplicated code from Helper that is now available in
StringTemplate, and the StringTemplateTrait.

src/View/Helper.php

@@ -339,84 +339,6 @@ public function assetTimestamp($path) {
 		return $path;
 	}
 
-/**
- * Returns a space-delimited string with items of the $options array. If a key
- * of $options array happens to be one of those listed in `Helper::$_minimizedAttributes`
- *
- * And its value is one of:
- *
- * - '1' (string)
- * - 1 (integer)
- * - true (boolean)
- * - 'true' (string)
- *
- * Then the value will be reset to be identical with key's name.
- * If the value is not one of these 3, the parameter is not output.
- *
- * 'escape' is a special option in that it controls the conversion of
- *  attributes to their html-entity encoded equivalents. Set to false to disable html-encoding.
- *
- * If value for any option key is set to `null` or `false`, that option will be excluded from output.
- *
- * @param array $options Array of options.
- * @param array $exclude Array of options to be excluded, the options here will not be part of the return.
- * @param string $insertBefore String to be inserted before options.
- * @param string $insertAfter String to be inserted after options.
- * @return string Composed attributes.
- * @deprecated This method will be moved to HtmlHelper in 3.0
- */
-	protected function _parseAttributes($options, $exclude = null, $insertBefore = ' ', $insertAfter = null) {
-		if (!is_string($options)) {
-			$options = (array)$options + array('escape' => true);
-
-			if (!is_array($exclude)) {
-				$exclude = array();
-			}
-
-			$exclude = array('escape' => true) + array_flip($exclude);
-			$escape = $options['escape'];
-			$attributes = array();
-
-			foreach ($options as $key => $value) {
-				if (!isset($exclude[$key]) && $value !== false && $value !== null) {
-					$attributes[] = $this->_formatAttribute($key, $value, $escape);
-				}
-			}
-			$out = implode(' ', $attributes);
-		} else {
-			$out = $options;
-		}
-		return $out ? $insertBefore . $out . $insertAfter : '';
-	}
-
-/**
- * Formats an individual attribute, and returns the string value of the composed attribute.
- * Works with minimized attributes that have the same value as their name such as 'disabled' and 'checked'
- *
- * @param string $key The name of the attribute to create
- * @param string $value The value of the attribute to create.
- * @param boolean $escape Define if the value must be escaped
- * @return string The composed attribute.
- * @deprecated This method will be moved to HtmlHelper in 3.0
- */
-	protected function _formatAttribute($key, $value, $escape = true) {
-		if (is_array($value)) {
-			$value = implode(' ', $value);
-		}
-		if (is_numeric($key)) {
-			return sprintf($this->_minimizedAttributeFormat, $value, $value);
-		}
-		$truthy = array(1, '1', true, 'true', $key);
-		$isMinimized = in_array($key, $this->_minimizedAttributes);
-		if ($isMinimized && in_array($value, $truthy, true)) {
-			return sprintf($this->_minimizedAttributeFormat, $key, $key);
-		}
-		if ($isMinimized) {
-			return '';
-		}
-		return sprintf($this->_attributeFormat, $key, ($escape ? h($value) : $value));
-	}
-
 /**
  * Returns a string to be used as onclick handler for confirm dialogs.
  *

src/View/Helper/HtmlHelper.php

@@ -984,7 +984,7 @@ public function useTag($tag) {
 		array_shift($args);
 		foreach ($args as &$arg) {
 			if (is_array($arg)) {
-				$arg = $this->_parseAttributes($arg, null, ' ', '');
+				$arg = $this->_templater->formatAttributes($arg);
 			}
 		}
 		return vsprintf($this->_tags[$tag], $args);

src/View/Helper/TimeHelper.php

@@ -19,6 +19,7 @@
 use Cake\Error;
 use Cake\Utility\Hash;
 use Cake\View\Helper;
+use Cake\View\Helper\StringTemplateTrait;
 use Cake\View\View;
 
 /**
@@ -31,6 +32,8 @@
  */
 class TimeHelper extends Helper {
 
+	use StringTemplateTrait;
+
 /**
  * Cake\Utility\Time instance
  *
@@ -59,6 +62,7 @@ public function __construct(View $View, $settings = array()) {
 		} else {
 			throw new Error\Exception(sprintf('Class for %s could not be found', $settings['engine']));
 		}
+		$this->initStringTemplates();
 	}
 
 /**
@@ -345,7 +349,7 @@ public function timeAgoInWords($dateTime, $options = array()) {
 			$relativeDate = sprintf(
 				'<%s%s>%s</%s>',
 				$element['tag'],
-				$this->_parseAttributes($element, array('tag')),
+				$this->_templater->formatAttributes($element, array('tag')),
 				$relativeDate,
 				$element['tag']
 			);