Bug 108296

Summary: Coordinated Graphics: Remove m_releasedImageBackings in CoordinatedGraphicsScene.
Product: WebKit Reporter: Dongseong Hwang <dongseong.hwang>
Component: Layout and RenderingAssignee: Nobody <webkit-unassigned>
Status: NEW ---    
Severity: Normal    
Priority: P2    
Version: 528+ (Nightly build)   
Hardware: Unspecified   
OS: Unspecified   
Bug Depends on: 108294    
Bug Blocks: 103854    

Description Dongseong Hwang 2013-01-29 22:23:09 PST 
Currently, m_releasedCoordinatedBackingStores guarantees that TextureMapperLayer does not refer a dangling pointer of a platform layer and a backing store.
However, now TextureMapperScene executes all operations at the time to flush, and the time gap between setting a platform layer and using the platform layer disappears, so we don't need m_releasedCoordinatedBackingStores anymore.