Revert of Factor GrTexture into public GrTexture and private GrTextureImpl. (https://codereview.chromium.org/275903002/) Reason for revert: Breaks chrome build. Original issue's description: > Factor GrTexture into public GrTexture and private GrTextureImpl. > > Committed: http://code.google.com/p/skia/source/detail?r=14680 [email protected], [email protected] [email protected], [email protected] NOTREECHECKS=true NOTRY=true Author: [email protected] Review URL: https://codereview.chromium.org/278073002 git-svn-id: http://skia.googlecode.com/svn/trunk/include@14681 2bbb7eff-a529-9590-31e7-b0007b416f81