Move test-only ContextFactory implementations out of production targets

ui/compositor/compositor.gyp

Index: ui/compositor/compositor.gyp
diff --git a/ui/compositor/compositor.gyp b/ui/compositor/compositor.gyp
index 00c68738b885e2108821fe3bb34cff86051f3562..5c6291f956671e7453362ac11565c613decb947e 100644
--- a/ui/compositor/compositor.gyp
+++ b/ui/compositor/compositor.gyp
@@ -20,7 +20,6 @@
         '<(DEPTH)/ui/gfx/gfx.gyp:gfx',
         '<(DEPTH)/ui/gl/gl.gyp:gl',
         '<(DEPTH)/ui/ui.gyp:ui',
-        '<(DEPTH)/webkit/common/gpu/webkit_gpu.gyp:webkit_gpu',
       ],
       'defines': [
         'COMPOSITOR_IMPLEMENTATION',
@@ -78,16 +77,25 @@
       'type': 'static_library',
       'dependencies': [
         '<(DEPTH)/base/base.gyp:base',
+        '<(DEPTH)/cc/cc.gyp:cc',
         '<(DEPTH)/skia/skia.gyp:skia',
+        '<(DEPTH)/third_party/WebKit/public/blink.gyp:blink_minimal',
         '<(DEPTH)/ui/events/events.gyp:events',
         '<(DEPTH)/ui/gfx/gfx.gyp:gfx',
         '<(DEPTH)/ui/gl/gl.gyp:gl',
         '<(DEPTH)/ui/ui.gyp:ui',
+        '<(DEPTH)/webkit/common/gpu/webkit_gpu.gyp:webkit_gpu',
         'compositor',
       ],
       'sources': [
         'test/test_layers.cc',
         'test/test_layers.h',
+        'test/test_context_factory.cc',
+        'test/test_context_factory.h',
+        'test/default_context_factory.cc',
+        'test/default_context_factory.h',
+        'test/context_factories_for_test.cc',
+        'test/context_factories_for_test.h',
         'test/test_suite.cc',
         'test/test_suite.h',
       ],