Add GenericSharedMemoryId and use w/ GpuMemoryBuffer

content/common/gpu/client/gpu_memory_buffer_impl_shared_memory.h

Index: content/common/gpu/client/gpu_memory_buffer_impl_shared_memory.h
diff --git a/content/common/gpu/client/gpu_memory_buffer_impl_shared_memory.h b/content/common/gpu/client/gpu_memory_buffer_impl_shared_memory.h
index fedeae774ba5650c8a8f37c9b7484000308df404..1ee0cc13699c38ffa70d93efd4c2e5ad32d3db17 100644
--- a/content/common/gpu/client/gpu_memory_buffer_impl_shared_memory.h
+++ b/content/common/gpu/client/gpu_memory_buffer_impl_shared_memory.h
@@ -37,12 +37,16 @@ class GpuMemoryBufferImplSharedMemory : public GpuMemoryBufferImpl {
   static bool IsSizeValidForFormat(const gfx::Size& size,
                                    gfx::BufferFormat format);
 
+  // Dumps GenericSharedMemory which backs this GpuMemoryBuffer.
+  static void DumpGenericSharedMemory(base::trace_event::ProcessMemoryDump* pmd,
+                                      uint64_t client_tracing_process_id,
+                                      gfx::GpuMemoryBufferId id);

[reveman, 2015/08/06 19:19:36]

How about OnMemoryDump? And include size+format so the function can produce a
dump with correct size.

[ericrk, 2015/08/06 22:05:19]

no longer applies.

+
   // Overridden from gfx::GpuMemoryBuffer:
   bool Map(void** data) override;
   void Unmap() override;
   void GetStride(int* stride) const override;
   gfx::GpuMemoryBufferHandle GetHandle() const override;
-

[reveman, 2015/08/06 19:19:36]

nit: keep this blank line

  private:
   GpuMemoryBufferImplSharedMemory(gfx::GpuMemoryBufferId id,
                                   const gfx::Size& size,