Move all style invalidation code into the css/invalidation directory.

Source/core/core.gypi

Index: Source/core/core.gypi
diff --git a/Source/core/core.gypi b/Source/core/core.gypi
index d1e78be104d3d9d0e4647ae5a82aa7cba1534635..f9242374bf5352f351e50b57771db357040990bc 100644
--- a/Source/core/core.gypi
+++ b/Source/core/core.gypi
@@ -834,10 +834,6 @@
             'css/SelectorFilter.h',
             'css/SiblingTraversalStrategies.h',
             'css/StyleColor.h',
-            'css/StyleInvalidationAnalysis.cpp',
-            'css/StyleInvalidationAnalysis.h',
-            'css/invalidation/StyleInvalidator.cpp',
-            'css/invalidation/StyleInvalidator.h',
             'css/StyleMedia.cpp',
             'css/StyleMedia.h',
             'css/StylePropertySerializer.cpp',
@@ -857,8 +853,12 @@
             'css/StyleSheetList.h',
             'css/TreeBoundaryCrossingRules.cpp',
             'css/TreeBoundaryCrossingRules.h',
-            'css/analyzer/DescendantInvalidationSet.h',
-            'css/analyzer/DescendantInvalidationSet.cpp',
+            'css/invalidation/DescendantInvalidationSet.h',
+            'css/invalidation/DescendantInvalidationSet.cpp',
+            'css/invalidation/StyleSheetInvalidationAnalysis.cpp',
+            'css/invalidation/StyleSheetInvalidationAnalysis.h',
+            'css/invalidation/StyleInvalidator.cpp',
+            'css/invalidation/StyleInvalidator.h',
             'css/resolver/AnimatedStyleBuilder.cpp',
             'css/resolver/AnimatedStyleBuilder.h',
             'css/resolver/CSSToStyleMap.cpp',
@@ -3299,7 +3299,7 @@
             'css/HoverUpdateTest.cpp',
             'css/RuleSetTest.cpp',
             'css/MediaQuerySetTest.cpp',
-            'css/analyzer/DescendantInvalidationSetTest.cpp',
+            'css/invalidation/DescendantInvalidationSetTest.cpp',
             'css/resolver/FontBuilderTest.cpp',
             'dom/ActiveDOMObjectTest.cpp',
             'dom/DOMImplementationTest.cpp',