add move semantics to SkTHash*

The more I look at std::unordered_map and co., the less I like them.
I think we might want to bet on SkTHash*.

As a simple first improvement, add move support.
Next comes shrinking, and then I'll start moving over SkTDynamicHash users.

BUG=skia:6053

Change-Id: Ifdb5d713aab66434ca271c7f18a0cbbb0720099c
Reviewed-on: https://skia-review.googlesource.com/5943
Commit-Queue: Mike Klein <mtklein@chromium.org>
Reviewed-by: Herb Derby <herb@google.com>
Reviewed-by: Hal Canary <halcanary@google.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/tests/HashTest.cpp b/tests/HashTest.cpp
index c9b1bc967b..4a884e3b5b 100644
--- a/tests/HashTest.cpp
+++ b/tests/HashTest.cpp
@@ -111,6 +111,13 @@ public:
         *fCounter += 1;
     }
 
+    CopyCounter(CopyCounter&& other) { *this = std::move(other); }
+    void operator=(CopyCounter&& other) {
+        fID = other.fID;
+        fCounter = other.fCounter;
+    }
+
+
     bool operator==(const CopyCounter& other) const {
         return fID == other.fID;
     }