Implementation of WebCompositorSupport when use_libcc_for_compositor=1

webkit/compositor/compositor.gyp

Index: webkit/compositor/compositor.gyp
diff --git a/webkit/compositor/compositor.gyp b/webkit/compositor/compositor.gyp
index 3f71c1fdd8033ce8a156c4f099d88f2c2eda60b1..cc648c46c097a18de2f776749da813675dc3285e 100644
--- a/webkit/compositor/compositor.gyp
+++ b/webkit/compositor/compositor.gyp
@@ -45,6 +45,35 @@
       'WheelFlingPlatformGestureCurve.h',
     ],
   },
+  'targets': [
+    {
+      'target_name': 'webkit_compositor_support',
+      'type': 'static_library',
+      'dependencies': [
+        '../../skia/skia.gyp:skia',
+        '../../third_party/WebKit/Source/Platform/Platform.gyp/Platform.gyp:webkit_platform',
+      ],
+      'sources': [
+        'web_compositor_support_impl.cc',
+        'web_compositor_support_impl.h',
+      ],
+      'include_dirs': [
+        '../..',
+      ],
+      'conditions': [
+        ['use_libcc_for_compositor==1', {
+          'include_dirs': [
+            '../../cc',
+            '../../cc/stubs',
+          ],
+          'dependencies': [
+            'webkit_compositor',
+            '../../third_party/WebKit/Source/WTF/WTF.gyp/WTF.gyp:wtf',
+          ],
+        }],
+      ],
+    },
+  ],
   'conditions': [
     ['use_libcc_for_compositor==1', {
       'targets': [
@@ -73,7 +102,7 @@
             'stubs/AnimationIdVendor.h',
             'stubs/public/WebTransformationMatrix',
           ],
-        }
+        },
       ],
     }],
   ],