Revert 260177 "By keeping track of transfer buffer usage (both s..."

trunk/src/gpu/command_buffer/client/mapped_memory.h

Index: trunk/src/gpu/command_buffer/client/mapped_memory.h
===================================================================
--- trunk/src/gpu/command_buffer/client/mapped_memory.h	(revision 260192)
+++ trunk/src/gpu/command_buffer/client/mapped_memory.h	(working copy)
@@ -5,7 +5,6 @@
 #ifndef GPU_COMMAND_BUFFER_CLIENT_MAPPED_MEMORY_H_
 #define GPU_COMMAND_BUFFER_CLIENT_MAPPED_MEMORY_H_
 
-#include "base/bind.h"
 #include "base/memory/scoped_vector.h"
 #include "gpu/command_buffer/client/fenced_allocator.h"
 #include "gpu/command_buffer/common/buffer.h"
@@ -21,8 +20,7 @@
  public:
   MemoryChunk(int32 shm_id,
               scoped_refptr<gpu::Buffer> shm,
-              CommandBufferHelper* helper,
-              const base::Closure& poll_callback);
+              CommandBufferHelper* helper);
   ~MemoryChunk();
 
   // Gets the size of the largest free block that is available without waiting.
@@ -123,7 +121,6 @@
   // |unused_memory_reclaim_limit|: When exceeded this causes pending memory
   // to be reclaimed before allocating more memory.
   MappedMemoryManager(CommandBufferHelper* helper,
-                      const base::Closure& poll_callback,
                       size_t unused_memory_reclaim_limit);
 
   ~MappedMemoryManager();
@@ -168,15 +165,6 @@
     return chunks_.size();
   }
 
-  size_t bytes_in_use() const {
-    size_t bytes_in_use = 0;
-    for (size_t ii = 0; ii < chunks_.size(); ++ii) {
-      MemoryChunk* chunk = chunks_[ii];
-      bytes_in_use += chunk->bytes_in_use();
-    }
-    return bytes_in_use;
-  }
-
   // Used for testing
   size_t allocated_memory() const {
     return allocated_memory_;
@@ -188,7 +176,6 @@
   // size a chunk is rounded up to.
   unsigned int chunk_size_multiple_;
   CommandBufferHelper* helper_;
-  base::Closure poll_callback_;
   MemoryChunkVector chunks_;
   size_t allocated_memory_;
   size_t max_free_bytes_;