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..71b61d4994ee4c3d9eb49f09557706528af27b75 100644
--- a/Source/web/WebViewImpl.cpp
+++ b/Source/web/WebViewImpl.cpp
@@ -2523,6 +2523,29 @@ int WebViewImpl::textInputFlags()
     else if (spellcheck == SpellcheckAttributeFalse)
         flags |= WebTextInputFlagSpellcheckOff;
 
+    if (isHTMLTextFormControlElement(element)) {
+        HTMLTextFormControlElement* formElement = static_cast<HTMLTextFormControlElement*>(element);
+        if (formElement->supportsAutocapitalize()) {
+            switch (formElement->autocapitalizeValue()) {
+            case TextFieldAutocapitalize::None:
+                flags |= WebTextInputFlagAutocapitalizeNone;
+                break;
+            case TextFieldAutocapitalize::Characters:
+                flags |= WebTextInputFlagAutocapitalizeCharacters;
+                break;
+            case TextFieldAutocapitalize::Words:
+                flags |= WebTextInputFlagAutocapitalizeWords;
+                break;
+            case TextFieldAutocapitalize::Sentences:
+                flags |= WebTextInputFlagAutocapitalizeSentences;
+                break;
+            case TextFieldAutocapitalize::Uninitialized:
+                ASSERT_NOT_REACHED();
+                break;
+            }
+        }
+    }
+
     return flags;
 }