Put CSSLayoutFunctionValue into the blink::cssvalue namespace.

This is part of the gradual process of putting all types that derive
from CSSValue into blink::cssvalue:: namespace.

Bug: 667961
Signed-off-by: Zhuoyu Qian <zhuoyu.qian@samsung.com>
Change-Id: I3dd4453a51f04490b25d9f2540a9f0df5bd116ca
Reviewed-on: https://chromium-review.googlesource.com/892542
Commit-Queue: nainar <nainar@chromium.org>
Reviewed-by: Stuart Langley <slangley@chromium.org>
Reviewed-by: nainar <nainar@chromium.org>
Cr-Commit-Position: refs/heads/master@{#532832}

third_party/WebKit/Source/core/css/CSSLayoutFunctionValue.cpp

@@ -8,6 +8,7 @@
 #include "platform/wtf/text/StringBuilder.h"
 
 namespace blink {
+namespace cssvalue {
 
 CSSLayoutFunctionValue::CSSLayoutFunctionValue(CSSCustomIdentValue* name,
                                                bool is_inline)
@@ -38,4 +39,5 @@ void CSSLayoutFunctionValue::TraceAfterDispatch(blink::Visitor* visitor) {
   CSSValue::TraceAfterDispatch(visitor);
 }
 
+}  // namespace cssvalue
 }  // namespace blink

third_party/WebKit/Source/core/css/CSSLayoutFunctionValue.h

@@ -13,6 +13,8 @@ namespace blink {
 
 class CSSCustomIdentValue;
 
+namespace cssvalue {
+
 class CSSLayoutFunctionValue : public CSSValue {
  public:
   static CSSLayoutFunctionValue* Create(CSSCustomIdentValue* name,
@@ -37,6 +39,7 @@ class CSSLayoutFunctionValue : public CSSValue {
 
 DEFINE_CSS_VALUE_TYPE_CASTS(CSSLayoutFunctionValue, IsLayoutFunctionValue());
 
+}  // namespace cssvalue
 }  // namespace blink
 
 #endif  // CSSLayoutFunctionValue_h

third_party/WebKit/Source/core/css/properties/longhands/DisplayCustom.cpp

@@ -40,7 +40,7 @@ const CSSValue* Display::ParseSingleValue(CSSParserTokenRange& range,
     return nullptr;
 
   range = range_copy;
-  return CSSLayoutFunctionValue::Create(
+  return cssvalue::CSSLayoutFunctionValue::Create(
       name, /* is_inline */ function == CSSValueInlineLayout);
 }
 
@@ -51,7 +51,7 @@ const CSSValue* Display::CSSValueFromComputedStyleInternal(
     Node*,
     bool allow_visited_style) const {
   if (style.IsDisplayLayoutCustomBox()) {
-    return CSSLayoutFunctionValue::Create(
+    return cssvalue::CSSLayoutFunctionValue::Create(
         CSSCustomIdentValue::Create(style.DisplayLayoutCustomName()),
         style.IsDisplayInlineType());
   }

third_party/WebKit/Source/core/css/resolver/StyleBuilderCustom.cpp

@@ -262,8 +262,8 @@ void StyleBuilderFunctions::applyValueCSSPropertyDisplay(
   }
 
   DCHECK(value.IsLayoutFunctionValue());
-  const CSSLayoutFunctionValue& layout_function_value =
-      ToCSSLayoutFunctionValue(value);
+  const cssvalue::CSSLayoutFunctionValue& layout_function_value =
+      cssvalue::ToCSSLayoutFunctionValue(value);
 
   EDisplay display = layout_function_value.IsInline()
                          ? EDisplay::kInlineLayoutCustom