Revert 106606 - Use WebKit compositor in ui::Layer

ui/gfx/compositor/compositor.gyp

Index: ui/gfx/compositor/compositor.gyp
===================================================================
--- ui/gfx/compositor/compositor.gyp	(revision 106614)
+++ ui/gfx/compositor/compositor.gyp	(working copy)
@@ -29,7 +29,6 @@
         '<(DEPTH)/skia/skia.gyp:skia',
         '<(DEPTH)/ui/gfx/gl/gl.gyp:gl',
         '<(DEPTH)/ui/ui.gyp:ui',
-        '<(DEPTH)/third_party/WebKit/Source/WebKit/chromium/WebKit.gyp:webkit',
       ],
       'defines': [
         'COMPOSITOR_IMPLEMENTATION',
@@ -40,8 +39,6 @@
         'compositor_export.h',
         'compositor_gl.cc',
         'compositor_gl.h',
-        'compositor_cc.cc',
-        'compositor_cc.h',
         'compositor_observer.h',
         'compositor_stub.cc',
         'compositor_win.cc',
@@ -80,42 +77,9 @@
             ['exclude', '^compositor_win.cc'],
           ],
         }],
-        ['use_webkit_compositor == 1', {
-            'sources/': [
-              ['exclude', '^compositor_(gl|win|stub).(h|cc)$'],
-            ],
-            'dependencies': [
-              '<(DEPTH)/webkit/support/webkit_support.gyp:webkit_gpu',
-            ],
-          }, {
-            'sources!': [
-              'compositor_cc.cc',
-              'compositor_cc.h',
-            ],
-          }
-        ],
       ],
     },
     {
-      'target_name': 'compositor_test_support',
-      'type': '<(component)',
-      'dependencies': [
-        '<(DEPTH)/webkit/support/webkit_support.gyp:webkit_support',
-        '<(DEPTH)/third_party/WebKit/Source/WebKit/chromium/WebKit.gyp:webkit',
-      ],
-      'sources': [
-        'compositor_test_support.cc',
-        'compositor_test_support.h',
-      ],
-      'conditions': [
-        ['use_webkit_compositor == 1', {
-            'dependencies': [
-              '<(DEPTH)/webkit/support/webkit_support.gyp:webkit_support',
-            ],
-        }],
-      ],
-    },
-    {
       'target_name': 'compositor_unittests',
       'type': 'executable',
       'dependencies': [
@@ -128,7 +92,6 @@
         '<(DEPTH)/ui/ui.gyp:ui',
         '<(DEPTH)/ui/ui.gyp:ui_resources',
         'compositor',
-        'compositor_test_support',
       ],
       'sources': [
         'layer_unittest.cc',