Implement autocapitalize in Blink to be used by the embedder.

Source/web/WebViewImpl.cpp

Index: Source/web/WebViewImpl.cpp
diff --git a/Source/web/WebViewImpl.cpp b/Source/web/WebViewImpl.cpp
index ce985a877372b08c8a422acf7700c6d1e30563f1..adf160d92cc03de99d7e5faee6fc5f8c0d49811c 100644
--- a/Source/web/WebViewImpl.cpp
+++ b/Source/web/WebViewImpl.cpp
@@ -2523,6 +2523,28 @@ int WebViewImpl::textInputFlags()
     else if (spellcheck == SpellcheckAttributeFalse)
         flags |= WebTextInputFlagSpellcheckOff;
 
+    if (isHTMLTextFormControlElement(element)) {
+        HTMLTextFormControlElement* formElement = static_cast<HTMLTextFormControlElement*>(element);
+        if (formElement->supportsAutocapitalize()) {
+            DEFINE_STATIC_LOCAL(const AtomicString, none, ("none", AtomicString::ConstructFromLiteral));
+            DEFINE_STATIC_LOCAL(const AtomicString, characters, ("characters", AtomicString::ConstructFromLiteral));
+            DEFINE_STATIC_LOCAL(const AtomicString, words, ("words", AtomicString::ConstructFromLiteral));
+            DEFINE_STATIC_LOCAL(const AtomicString, sentences, ("sentences", AtomicString::ConstructFromLiteral));
+
+            const AtomicString& autocapitalize = formElement->autocapitalize();
+            if (autocapitalize == none)
+                flags |= WebTextInputFlagAutocapitalizeNone;
+            else if (autocapitalize == characters)
+                flags |= WebTextInputFlagAutocapitalizeCharacters;
+            else if (autocapitalize == words)
+                flags |= WebTextInputFlagAutocapitalizeWords;
+            else if (autocapitalize == sentences)
+                flags |= WebTextInputFlagAutocapitalizeSentences;
+            else
+                ASSERT_NOT_REACHED();
+        }
+    }
+
     return flags;
 }