Revert 147328 - Current status of patch:

Revert 147328 - Current status of patch:
- In-memory cache
- maximum in memory limit (currently 6mb)
- lru eviction
- Cache includes saving the attribute + uniform mappings

Wiring:
- Added bindings for glProgramBinary and glGetProgramBinary
- Plumbed the shader cache from gl_channel_manager to program_manager

Refactoring:
- moved the meat of DoCompile to the ProgramManager

New:
- added field to ShaderInfo to store if we have a possible pending cache compile
- exposed attrib_map and uniform_map in ShaderInfo for the cache
- program_cache base class with in-memory status storage
- Simple memory_program_cache implementation, stores programs with lru eviction
- Added caching logic to DoCompileShader in gles2_cmd_decoder and Link in program_manager


Design doc: https://docs.google.com/document/d/1Vceem-nF4TCICoeGSh7OMXxfGuJEJYblGXRgN9V9hcE/edit

BUG=88572
Review URL: https://chromiumcodereview.appspot.com/10534173

TBR=dmurph@chromium.org
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=147497