Allow GrGpuResources' unique keys to be changed.

src/gpu/effects/GrTextureStripAtlas.cpp

Index: src/gpu/effects/GrTextureStripAtlas.cpp
diff --git a/src/gpu/effects/GrTextureStripAtlas.cpp b/src/gpu/effects/GrTextureStripAtlas.cpp
index 73764199c502d6286252e4bb68ca3bd653b846d5..51aaf53540a2aaf3ad866a56f9f2eb7d691f35bf 100644
--- a/src/gpu/effects/GrTextureStripAtlas.cpp
+++ b/src/gpu/effects/GrTextureStripAtlas.cpp
@@ -204,7 +204,7 @@ void GrTextureStripAtlas::lockTexture() {
     fTexture = fDesc.fContext->findAndRefCachedTexture(key);
     if (NULL == fTexture) {
         fTexture = fDesc.fContext->createTexture(texDesc, true, NULL, 0);
-        SkAssertResult(fDesc.fContext->addResourceToCache(key, fTexture));
+        fDesc.fContext->addResourceToCache(key, fTexture);
         // This is a new texture, so all of our cache info is now invalid
         this->initLRU();
         fKeyTable.rewind();