CC Animation: Move files from cc_blink to Source/platform/animation

Disclaimer: This CL is only about moving files and sections of code.

We:

- Remove Web prefixes on files/classes and add Compositor prefix where necessary.

- Move exported/WebTransformKeyframe.cpp and exported/WebFilterKeyframe.cpp
to animation/ to group them with their headers.

- Move CompositorFilterOperations not to animation/ but to graphics/ folder,
because it's a property of WebLayer.

- Introduce CompositorFactory singleton (works as Platform) to create CC objects
in blink.
All animation methods are moved from CompositorSupport to CompositorFactory.
Other methods are also expected to be moved there.

- Decouple WebLayer and WebCompositorAnimation interfaces
by using cc::Animation class.
It allows us to make WebCompositorAnimation non-public.
WebLayer animation dependencies will go away when we erase the old animation system
(it's already disabled). http://crbug.com/575041

- Move static asserts from content/child/assert_matching_enums.cc to
Source/platform/WebCompositorAnimation.cpp (so the enum becomes non-public).

What's next (separate CLs):
- Remove virtual functions (when gmock-based tests erased)
- Remove redundant enum declarations (using alias).
- Erase the animation delegate adapter.

BUG=577016
CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel

Review URL: https://codereview.chromium.org/1616653002

Cr-Commit-Position: refs/heads/master@{#374792}

1 files changed, 3 insertions, 7 deletions

diff --git a/cc/blink/web_display_item_list_impl.cc b/cc/blink/web_display_item_list_impl.cc
index c9d8de7..451a5d5 100644
--- a/cc/blink/web_display_item_list_impl.cc
+++ b/cc/blink/web_display_item_list_impl.cc
@@ -9,7 +9,6 @@
 
 #include <vector>
 
-#include "cc/blink/web_filter_operations_impl.h"
 #include "cc/playback/clip_display_item.h"
 #include "cc/playback/clip_path_display_item.h"
 #include "cc/playback/compositing_display_item.h"
@@ -196,16 +195,13 @@ void WebDisplayItemListImpl::appendEndCompositingItem(
 
 void WebDisplayItemListImpl::appendFilterItem(
     const blink::WebRect& visual_rect,
-    const blink::WebFilterOperations& filters,
+    const cc::FilterOperations& filters,
     const blink::WebFloatRect& bounds) {
-  const WebFilterOperationsImpl& filters_impl =
-      static_cast<const WebFilterOperationsImpl&>(filters);
-
   if (display_item_list_->RetainsIndividualDisplayItems()) {
     display_item_list_->CreateAndAppendItem<cc::FilterDisplayItem>(
-        visual_rect, filters_impl.AsFilterOperations(), bounds);
+        visual_rect, filters, bounds);
   } else {
-    cc::FilterDisplayItem item(filters_impl.AsFilterOperations(), bounds);
+    cc::FilterDisplayItem item(filters, bounds);
     display_item_list_->RasterIntoCanvas(item);
   }
 }