third_party/WebKit: fix typos found in comments

third_party/WebKit/Source/core/html/parser/HTMLTokenizer.cpp

Index: third_party/WebKit/Source/core/html/parser/HTMLTokenizer.cpp
diff --git a/third_party/WebKit/Source/core/html/parser/HTMLTokenizer.cpp b/third_party/WebKit/Source/core/html/parser/HTMLTokenizer.cpp
index 29d87a27d64594708e7f7c78a64be971ba5f815c..284d8fad119284bda96a0b933ed6a20d4302a7c9 100644
--- a/third_party/WebKit/Source/core/html/parser/HTMLTokenizer.cpp
+++ b/third_party/WebKit/Source/core/html/parser/HTMLTokenizer.cpp
@@ -963,7 +963,7 @@ bool HTMLTokenizer::nextToken(SegmentedString& source, HTMLToken& token)
         }
         // We're supposed to switch back to the attribute value state that
         // we were in when we were switched into this state. Rather than
-        // keeping track of this explictly, we observe that the previous
+        // keeping track of this explicitly, we observe that the previous
         // state can be determined by m_additionalAllowedCharacter.
         if (m_additionalAllowedCharacter == '"')
             HTML_SWITCH_TO(AttributeValueDoubleQuotedState);