FBTF: Fix more ctor/dtors found by clang plugin.

gpu/command_buffer/common/id_allocator.cc

Index: gpu/command_buffer/common/id_allocator.cc
diff --git a/gpu/command_buffer/common/id_allocator.cc b/gpu/command_buffer/common/id_allocator.cc
index 6b2c0e4bc5cab7cb9945ad8ddc1d2d825161fd1e..68f79720b1de2000718b9c7d90fc21c0dca624a5 100644
--- a/gpu/command_buffer/common/id_allocator.cc
+++ b/gpu/command_buffer/common/id_allocator.cc
@@ -9,7 +9,35 @@
 
 namespace gpu {
 
-IdAllocator::IdAllocator() {
+IdAllocator::IdAllocator() {}
+
+IdAllocator::~IdAllocator() {}
+
+ResourceId IdAllocator::AllocateID() {
+  ResourceId id = FindFirstFree();
+  MarkAsUsed(id);
+  return id;
+}
+
+ResourceId IdAllocator::AllocateIDAtOrAbove(ResourceId desired_id) {
+  GPU_DCHECK_LT(static_cast<ResourceId>(used_ids_.size()),
+            static_cast<ResourceId>(-1));
+  for (; InUse(desired_id); ++desired_id) {}
+  MarkAsUsed(desired_id);
+  return desired_id;
+}
+
+bool IdAllocator::MarkAsUsed(ResourceId id) {
+  std::pair<ResourceIdSet::iterator, bool> result = used_ids_.insert(id);
+  return result.second;
+}
+
+void IdAllocator::FreeID(ResourceId id) {
+  used_ids_.erase(id);
+}
+
+bool IdAllocator::InUse(ResourceId id) const {
+  return id == kInvalidResource || used_ids_.find(id) != used_ids_.end();
 }
 
 ResourceId IdAllocator::FindFirstFree() const {
@@ -24,12 +52,4 @@ ResourceId IdAllocator::FindFirstFree() const {
   return id;
 }
 
-ResourceId IdAllocator::AllocateIDAtOrAbove(ResourceId desired_id) {
-  GPU_DCHECK_LT(static_cast<ResourceId>(used_ids_.size()),
-            static_cast<ResourceId>(-1));
-  for (; InUse(desired_id); ++desired_id) {}
-  MarkAsUsed(desired_id);
-  return desired_id;
-}
-
 }  // namespace gpu