Move StyleResolver and related classes to core/css/resolver

Source/core/core.gypi

Index: Source/core/core.gypi
diff --git a/Source/core/core.gypi b/Source/core/core.gypi
index a80381c3b567f272562a4806f73217130cb3ffc9..763eb198ea3fb00494cbf044cad6cc170f77712a 100644
--- a/Source/core/core.gypi
+++ b/Source/core/core.gypi
@@ -623,8 +623,6 @@
             'css/DocumentRuleSets.h',
             'css/ElementRuleCollector.cpp',
             'css/ElementRuleCollector.h',
-            'css/FilterOperationResolver.cpp',
-            'css/FilterOperationResolver.h',
             'css/FontFeatureValue.cpp',
             'css/FontFeatureValue.h',
             'css/FontLoader.h',
@@ -664,8 +662,6 @@
             'css/SVGCSSComputedStyleDeclaration.cpp',
             'css/SVGCSSParser.cpp',
             'css/SVGCSSStyleSelector.cpp',
-            'css/ScopedStyleResolver.cpp',
-            'css/ScopedStyleResolver.h',
             'css/SelectorChecker.cpp',
             'css/SelectorChecker.h',
             'css/SelectorCheckerFastPath.cpp',
@@ -685,10 +681,6 @@
             'css/StylePropertySet.h',
             'css/StylePropertyShorthand.cpp',
             'css/StylePropertyShorthand.h',
-            'css/StyleResolver.cpp',
-            'css/StyleResolver.h',
-            'css/StyleResolverState.cpp',
-            'css/StyleResolverState.h',
             'css/StyleRule.cpp',
             'css/StyleRule.h',
             'css/StyleRuleImport.cpp',
@@ -699,10 +691,6 @@
             'css/StyleSheetContents.h',
             'css/StyleSheetList.cpp',
             'css/StyleSheetList.h',
-            'css/TransformBuilder.cpp',
-            'css/TransformBuilder.h',
-            'css/ViewportStyleResolver.cpp',
-            'css/ViewportStyleResolver.h',
             'css/WebKitCSSArrayFunctionValue.cpp',
             'css/WebKitCSSArrayFunctionValue.h',
             'css/WebKitCSSFilterRule.cpp',
@@ -724,6 +712,18 @@
             'css/WebKitCSSTransformValue.cpp',
             'css/WebKitCSSViewportRule.h',
             'css/WebKitCSSViewportRule.cpp',
+            'css/resolver/FilterOperationResolver.cpp',
+            'css/resolver/FilterOperationResolver.h',
+            'css/resolver/ScopedStyleResolver.cpp',
+            'css/resolver/ScopedStyleResolver.h',
+            'css/resolver/StyleResolver.cpp',
+            'css/resolver/StyleResolver.h',
+            'css/resolver/StyleResolverState.cpp',
+            'css/resolver/StyleResolverState.h',
+            'css/resolver/TransformBuilder.cpp',
+            'css/resolver/TransformBuilder.h',
+            'css/resolver/ViewportStyleResolver.cpp',
+            'css/resolver/ViewportStyleResolver.h',
             'editing/AppendNodeCommand.cpp',
             'editing/AppendNodeCommand.h',
             'editing/ApplyBlockElementCommand.cpp',