1 files changed, 9 insertions, 40 deletions
diff --git a/gpu/command_buffer/client/id_allocator.cc b/gpu/command_buffer/client/id_allocator.cc
index e6f9b6c..2d244d0 100644
--- a/gpu/command_buffer/client/id_allocator.cc
+++ b/gpu/command_buffer/client/id_allocator.cc
@@ -9,50 +9,19 @@
 
 namespace gpu {
 
-IdAllocator::IdAllocator() : bitmap_(1) { bitmap_[0] = 0; }
-
-static const unsigned int kBitsPerUint32 = sizeof(Uint32) * 8;  // NOLINT
+IdAllocator::IdAllocator() {
+}
 
-// Looks for the first non-full entry, and return the first free bit in that
-// entry. If all the entries are full, it will return the first bit of an entry
-// that would be appended, but doesn't actually append that entry to the vector.
 unsigned int IdAllocator::FindFirstFree() const {
-  size_t size = bitmap_.size();
-  for (unsigned int i = 0; i < size; ++i) {
-    Uint32 value = bitmap_[i];
-    if (value != 0xffffffffU) {
-      for (unsigned int j = 0; j < kBitsPerUint32; ++j) {
-        if (!(value & (1 << j))) return i * kBitsPerUint32 + j;
-      }
-      DLOG(FATAL) << "Code should not reach here.";
+  ResourceId id = 1;
+  for (ResourceIdSet::const_iterator it = used_ids_.begin();
+       it != used_ids_.end(); ++it) {
+    if ((*it) != id) {
+      return id;
     }
+    ++id;
   }
-  return size*kBitsPerUint32;
-}
-
-// Sets the correct bit in the proper entry, resizing the vector if needed.
-void IdAllocator::SetBit(unsigned int bit, bool value) {
-  size_t size = bitmap_.size();
-  if (bit >= size * kBitsPerUint32) {
-    size_t newsize = bit / kBitsPerUint32 + 1;
-    bitmap_.resize(newsize);
-    for (size_t i = size; i < newsize; ++i) bitmap_[i] = 0;
-  }
-  Uint32 mask = 1U << (bit % kBitsPerUint32);
-  if (value) {
-    bitmap_[bit / kBitsPerUint32] |= mask;
-  } else {
-    bitmap_[bit / kBitsPerUint32] &= ~mask;
-  }
-}
-
-// Gets the bit from the proper entry. This doesn't resize the vector, just
-// returns false if the bit is beyond the last entry.
-bool IdAllocator::GetBit(unsigned int bit) const {
-  size_t size = bitmap_.size();
-  if (bit / kBitsPerUint32 >= size) return false;
-  Uint32 mask = 1U << (bit % kBitsPerUint32);
-  return (bitmap_[bit / kBitsPerUint32] & mask) != 0;
+  return id;
 }
 
 }  // namespace gpu