[blimp] Add SkPicture caching support.

cc/cc_tests.gyp

Index: cc/cc_tests.gyp
diff --git a/cc/cc_tests.gyp b/cc/cc_tests.gyp
index 6c6f33ae8d98baf37b0381b70fc8a04d4d45a7b8..175187007e3c095cd3f17af3e6819818f7c61798 100644
--- a/cc/cc_tests.gyp
+++ b/cc/cc_tests.gyp
@@ -89,6 +89,7 @@
       'proto/cc_conversions_unittest.cc',
       'proto/gfx_conversions_unittest.cc',
       'proto/gpu_conversions_unittest.cc',
+      'proto/picture_data_conversions_unittest.cc',
       'proto/skia_conversions_unittest.cc',
       'proto/synced_property_conversions_unittest.cc',
       'quads/draw_polygon_unittest.cc',
@@ -181,8 +182,12 @@
       'test/failure_output_surface.h',
       'test/fake_channel_impl.cc',
       'test/fake_channel_impl.h',
+      'test/fake_client_picture_cache.cc',
+      'test/fake_client_picture_cache.h',
       'test/fake_content_layer_client.cc',
       'test/fake_content_layer_client.h',
+      'test/fake_engine_picture_cache.cc',
+      'test/fake_engine_picture_cache.h',
       'test/fake_external_begin_frame_source.cc',
       'test/fake_external_begin_frame_source.h',
       'test/fake_image_serialization_processor.cc',
@@ -260,6 +265,8 @@
       'test/ordered_texture_map.h',
       'test/paths.cc',
       'test/paths.h',
+      'test/picture_cache_model.cc',
+      'test/picture_cache_model.h',
       'test/pixel_comparator.cc',
       'test/pixel_comparator.h',
       'test/pixel_test.cc',