cc: Refactor ResourceProvider.

This moves classes and apis which are not associated with Resource
to their caller.  We invoke the GL methods directly instead of
wrapping them, and we move the ScopedGpuRaster class out of
ResourceProvider to its own file.

BUG=391190

Review URL: https://codereview.chromium.org/375303002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@283404 0039d316-1c4b-4281-b951-d872f2087c98

diff --git a/cc/BUILD.gn b/cc/BUILD.gn
index 05d2ab6..d8f7e8f 100644
--- a/cc/BUILD.gn
+++ b/cc/BUILD.gn

@@ -373,6 +373,8 @@
     "resources/resource_update_queue.cc",
     "resources/resource_update_queue.h",
     "resources/returned_resource.h",
+    "resources/scoped_gpu_raster.cc",
+    "resources/scoped_gpu_raster.h",
     "resources/scoped_resource.cc",
     "resources/scoped_resource.h",
     "resources/scoped_ui_resource.cc",