Revert of Fix SkData leaks at GrResourceKey::setCustomData() call sites.

Revert of Fix SkData leaks at GrResourceKey::setCustomData() call sites. (patchset #1 id:1 of https://codereview.chromium.org/1270103003/ )

Reason for revert:
reverting this chain, lots of big diffs

Original issue's description:
> Fix SkData leaks at GrResourceKey::setCustomData() call sites.
> 
> BUG=skia:
> TBR=bsalomon@google.com
> 
> Committed: https://skia.googlesource.com/skia/+/c369348aa596d7be05c9ce0ca5d349e5d1903789

TBR=bsalomon@google.com,senorblanco@chromium.org,senorblanco@google.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

[mtklein_C, 2015-08-04 15:17:50]

Created Revert of Fix SkData leaks at GrResourceKey::setCustomData() call sites.

[commit-bot: I haz the power, 2015-08-04 15:17:57]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1262623008/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1262623008/1

[commit-bot: I haz the power, 2015-08-04 15:18:02]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-08-04 15:18:02]

Failed to apply patch for tests/ResourceCacheTest.cpp:
While running git apply --index -3 -p1;
  error: patch failed: tests/ResourceCacheTest.cpp:1241
  error: repository lacks the necessary blob to fall back on 3-way merge.
  error: tests/ResourceCacheTest.cpp: patch does not apply

Patch:       tests/ResourceCacheTest.cpp
Index: tests/ResourceCacheTest.cpp
diff --git a/tests/ResourceCacheTest.cpp b/tests/ResourceCacheTest.cpp
index
a4acab86a19a968fa97a229602420cfcfec0301a..65b7b7ca2de630613aedd57873427d470ffa7562
100644
--- a/tests/ResourceCacheTest.cpp
+++ b/tests/ResourceCacheTest.cpp
@@ -851,8 +851,7 @@
         make_unique_key<0>(&key2, 0);
         SkAutoTUnref<TestResource> d(SkNEW_ARGS(TestResource,
(context->getGpu())));
         int foo = 4132;
-        SkAutoTUnref<SkData> data(SkData::NewWithCopy(&foo, sizeof(foo)));
-        key2.setCustomData(data.get());
+        key2.setCustomData(SkData::NewWithCopy(&foo, sizeof(foo)));
         d->resourcePriv().setUniqueKey(key2);
     }
 
@@ -1241,8 +1240,7 @@
 static void test_custom_data(skiatest::Reporter* reporter) {
     GrUniqueKey key1, key2;
     int foo = 4132;
-    SkAutoTUnref<SkData> data(SkData::NewWithCopy(&foo, sizeof(foo)));
-    key1.setCustomData(data.get());
+    key1.setCustomData(SkData::NewWithCopy(&foo, sizeof(foo)));
     REPORTER_ASSERT(reporter, *(int*) key1.getCustomData()->data() == 4132);
     REPORTER_ASSERT(reporter, key2.getCustomData() == nullptr);