Enforce a memory limit on MappedMemoryManager

gpu/command_buffer/client/gles2_implementation.h

Index: gpu/command_buffer/client/gles2_implementation.h
diff --git a/gpu/command_buffer/client/gles2_implementation.h b/gpu/command_buffer/client/gles2_implementation.h
index c2bf49f41fc2a4dfdffceca6e5a82d8fbf0112d2..6e892d558c51d9e6e4e0acfaa602e1754db4bfc7 100644
--- a/gpu/command_buffer/client/gles2_implementation.h
+++ b/gpu/command_buffer/client/gles2_implementation.h
@@ -21,6 +21,7 @@
 #include "gpu/command_buffer/client/gles2_interface.h"
 #include "gpu/command_buffer/client/gpu_memory_buffer_tracker.h"
 #include "gpu/command_buffer/client/image_factory.h"
+#include "gpu/command_buffer/client/mapped_memory.h"
 #include "gpu/command_buffer/client/query_tracker.h"
 #include "gpu/command_buffer/client/ref_counted.h"
 #include "gpu/command_buffer/client/ring_buffer.h"
@@ -98,7 +99,6 @@ struct GLUniformDefinitionCHROMIUM;
 
 namespace gpu {
 
-class MappedMemoryManager;
 class ScopedTransferBufferPtr;
 class TransferBufferInterface;
 
@@ -115,6 +115,9 @@ class VertexArrayObjectManager;
 // shared memory and synchronization issues.
 class GLES2_IMPL_EXPORT GLES2Implementation : public GLES2Interface {
  public:
+  enum MappedMemoryLimit {
+    kNoLimit = MappedMemoryManager::kNoLimit,
+  };
   class ErrorMessageCallback {
    public:
     virtual ~ErrorMessageCallback() { }
@@ -186,6 +189,12 @@ class GLES2_IMPL_EXPORT GLES2Implementation : public GLES2Interface {
       unsigned int min_transfer_buffer_size,
       unsigned int max_transfer_buffer_size);
 
+  bool InitializeWithMemoryLimit(
+      unsigned int starting_transfer_buffer_size,
+      unsigned int min_transfer_buffer_size,
+      unsigned int max_transfer_buffer_size,
+      unsigned int mapped_memory_limit);
+
   // The GLES2CmdHelper being used by this GLES2Implementation. You can use
   // this to issue cmds at a lower level for certain kinds of optimization.
   GLES2CmdHelper* helper() const;
@@ -215,7 +224,6 @@ class GLES2_IMPL_EXPORT GLES2Implementation : public GLES2Interface {
       GLuint program, GLuint index, GLsizei bufsize, GLsizei* length,
       GLint* size, GLenum* type, char* name);
 
-  void SetSharedMemoryChunkSizeMultiple(unsigned int multiple);
 
   void FreeUnusedSharedMemory();
   void FreeEverything();