Replaced TextureCacheEntry with GrTexture* and a back pointer to GrResourceEntry (in GrTexture)

This is a (somewhat) mechanical replacement of TextureCacheEntry with GrTexture* (which now has a back pointer to the GrResourceEntry). Later CLs will make use of the new back pointer to automate the unlocking of textures (among other things).

[bsalomon, 2012-08-16 13:42:15]

Overall LGTM, minor comments below.

http://codereview.appspot.com/6460089/diff/1001/include/gpu/GrContext.h
File include/gpu/GrContext.h (right):

http://codereview.appspot.com/6460089/diff/1001/include/gpu/GrContext.h#newco...
include/gpu/GrContext.h:182: * Free any data associated with the provided entry
in the texture cache
Could we beef up this comment a little bit. It's not obvious to me what this
really does (does it remove the texture from the cache and no longer count it
against the budget?)

http://codereview.appspot.com/6460089/diff/1001/include/gpu/GrResource.h
File include/gpu/GrResource.h (right):

http://codereview.appspot.com/6460089/diff/1001/include/gpu/GrResource.h#newc...
include/gpu/GrResource.h:67: void setCacheEntry(GrResourceEntry* cacheEntry) {
fCacheEntry = cacheEntry; }
The fact that the GrResourceEntry is in src/gpu not include/gpu makes this a bit
more palatable :)

http://codereview.appspot.com/6460089/diff/1001/include/gpu/SkGr.h
File include/gpu/SkGr.h (right):

http://codereview.appspot.com/6460089/diff/1001/include/gpu/SkGr.h#newcode82
include/gpu/SkGr.h:82: void GrUnlockCachedBitmapTexture(GrContext*, GrTexture*);
Can we get rid of the GrContext param? The texture has a back ptr.

[robertphillips, 2012-08-16 14:49:52]

committed as r5122

http://codereview.appspot.com/6460089/diff/1001/include/gpu/GrContext.h
File include/gpu/GrContext.h (right):

http://codereview.appspot.com/6460089/diff/1001/include/gpu/GrContext.h#newco...
include/gpu/GrContext.h:182: * Free any data associated with the provided entry
in the texture cache
On 2012/08/16 13:42:15, bsalomon wrote:
> Could we beef up this comment a little bit. It's not obvious to me what this
> really does (does it remove the texture from the cache and no longer count it
> against the budget?)

Done.

http://codereview.appspot.com/6460089/diff/1001/include/gpu/SkGr.h
File include/gpu/SkGr.h (right):

http://codereview.appspot.com/6460089/diff/1001/include/gpu/SkGr.h#newcode82
include/gpu/SkGr.h:82: void GrUnlockCachedBitmapTexture(GrContext*, GrTexture*);
On 2012/08/16 13:42:15, bsalomon wrote:
> Can we get rid of the GrContext param? The texture has a back ptr.

Done.