15f0c6815d
This CL splits out the code in RTCNV12Shader.mm for uploading byte buffers to textures into its own class RTCNV12TextureCache. The purpose is to prepare for allowing clients to inject their own shaders. RTCNV12TextureCache will be used in the generic code, while the actual shaders in RTCNV12Shader will be customizable by the client. BUG=webrtc:7473 Review-Url: https://codereview.webrtc.org/2835203003 Cr-Commit-Position: refs/heads/master@{#17902}