Revert of Move more sources from modules.gypi to subdirectories.

third_party/WebKit/Source/modules/canvas2d/BUILD.gn

Index: third_party/WebKit/Source/modules/canvas2d/BUILD.gn
diff --git a/third_party/WebKit/Source/modules/canvas2d/BUILD.gn b/third_party/WebKit/Source/modules/canvas2d/BUILD.gn
deleted file mode 100644
index 095cecac110ade775ee7def91fb1ca2bc41d8cb1..0000000000000000000000000000000000000000
--- a/third_party/WebKit/Source/modules/canvas2d/BUILD.gn
+++ /dev/null
@@ -1,29 +0,0 @@
-# Copyright 2016 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-import("//third_party/WebKit/Source/modules/modules.gni")
-
-blink_modules_sources("canvas2d") {
-  sources = [
-    "BaseRenderingContext2D.cpp",
-    "BaseRenderingContext2D.h",
-    "CanvasGradient.cpp",
-    "CanvasGradient.h",
-    "CanvasPathMethods.cpp",
-    "CanvasPathMethods.h",
-    "CanvasPattern.cpp",
-    "CanvasPattern.h",
-    "CanvasRenderingContext2D.cpp",
-    "CanvasRenderingContext2D.h",
-    "CanvasRenderingContext2DState.cpp",
-    "CanvasRenderingContext2DState.h",
-    "CanvasStyle.cpp",
-    "CanvasStyle.h",
-    "ClipList.cpp",
-    "ClipList.h",
-    "HitRegion.cpp",
-    "HitRegion.h",
-    "Path2D.h",
-  ]
-}