Move geometry interface files to geometry directory.

third_party/WebKit/Source/core/BUILD.gn

Index: third_party/WebKit/Source/core/BUILD.gn
diff --git a/third_party/WebKit/Source/core/BUILD.gn b/third_party/WebKit/Source/core/BUILD.gn
index d670e354110e2a66507a8d972d96c62b152f94a8..de74744c96dd7f77242a3fb7036931705dab760d 100644
--- a/third_party/WebKit/Source/core/BUILD.gn
+++ b/third_party/WebKit/Source/core/BUILD.gn
@@ -178,6 +178,7 @@ component("core") {
     "//third_party/WebKit/Source/core/events",
     "//third_party/WebKit/Source/core/fileapi",
     "//third_party/WebKit/Source/core/frame",
+    "//third_party/WebKit/Source/core/geometry",
     "//third_party/WebKit/Source/core/html",
     "//third_party/WebKit/Source/core/imagebitmap",
     "//third_party/WebKit/Source/core/input",
@@ -1163,7 +1164,6 @@ source_set("unit_tests") {
     "dom/AttrTest.cpp",
     "dom/CSSSelectorWatchTest.cpp",
     "dom/DOMImplementationTest.cpp",
-    "dom/DOMMatrixTest.cpp",
     "dom/DocumentStatisticsCollectorTest.cpp",
     "dom/DocumentTest.cpp",
     "dom/DocumentUserGestureTokenTest.cpp",
@@ -1222,6 +1222,7 @@ source_set("unit_tests") {
     "frame/csp/ContentSecurityPolicyTest.cpp",
     "frame/csp/MediaListDirectiveTest.cpp",
     "frame/csp/SourceListDirectiveTest.cpp",
+    "geometry/DOMMatrixTest.cpp",
     "html/AutoplayUmaHelperTest.cpp",
     "html/FormDataTest.cpp",
     "html/HTMLDimensionTest.cpp",