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

http://codereview.appspot.com/6460089/



git-svn-id: http://skia.googlecode.com/svn/trunk@5122 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gpu/GrResource.cpp b/src/gpu/GrResource.cpp
index 7e2d4a8..74fc63d4 100644
--- a/src/gpu/GrResource.cpp
+++ b/src/gpu/GrResource.cpp
@@ -16,6 +16,7 @@
     fGpu        = gpu;
     fNext       = NULL;
     fPrevious   = NULL;
+    fCacheEntry = NULL;
     fGpu->insertResource(this);
 }