CC/GPU: Add a soft limit to the compositor.

cc/resources/tile_priority.cc

Index: cc/resources/tile_priority.cc
diff --git a/cc/resources/tile_priority.cc b/cc/resources/tile_priority.cc
index b0e0c9f31b5cdbe8815a3931520c2de6bf7ec1aa..9e81d6c17f67e02dfabbdf09cd7da9cced2c3373 100644
--- a/cc/resources/tile_priority.cc
+++ b/cc/resources/tile_priority.cc
@@ -104,7 +104,8 @@ scoped_ptr<base::Value> GlobalStateThatImpactsTilePriority::AsValue() const {
   scoped_ptr<base::DictionaryValue> state(new base::DictionaryValue());
   state->Set("memory_limit_policy",
              TileMemoryLimitPolicyAsValue(memory_limit_policy).release());
-  state->SetInteger("memory_limit_in_bytes", memory_limit_in_bytes);
+  state->SetInteger("soft_memory_limit_in_bytes", soft_memory_limit_in_bytes);
+  state->SetInteger("hard_memory_limit_in_bytes", hard_memory_limit_in_bytes);
   state->SetInteger("unused_memory_limit_in_bytes",
                     unused_memory_limit_in_bytes);
   state->SetInteger("num_resources_limit", num_resources_limit);