Add Intel DRM backed GpuMemoryBuffer implementation.

content/common/gpu/client/gpu_memory_buffer_impl_linux.cc

Index: content/common/gpu/client/gpu_memory_buffer_impl_linux.cc
diff --git a/content/common/gpu/client/gpu_memory_buffer_impl_linux.cc b/content/common/gpu/client/gpu_memory_buffer_impl_linux.cc
index ffd4e381c7d9276e27d51e5c9d027ecca96dd33c..1f0ffba658fe03ccca8bdfd9edeb0ff3743db056 100644
--- a/content/common/gpu/client/gpu_memory_buffer_impl_linux.cc
+++ b/content/common/gpu/client/gpu_memory_buffer_impl_linux.cc
@@ -4,6 +4,7 @@
 
 #include "content/common/gpu/client/gpu_memory_buffer_impl.h"
 
+#include "content/common/gpu/client/gpu_memory_buffer_impl_intel_drm.h"
 #include "content/common/gpu/client/gpu_memory_buffer_impl_shm.h"
 
 namespace content {
@@ -21,6 +22,14 @@ scoped_ptr<GpuMemoryBufferImpl> GpuMemoryBufferImpl::Create(
 
       return buffer.PassAs<GpuMemoryBufferImpl>();
     }
+    case gfx::INTEL_DRM_BUFFER: {
+      scoped_ptr<GpuMemoryBufferImplIntelDRM> buffer(
+          new GpuMemoryBufferImplIntelDRM(size, internalformat));
+      if (!buffer->Initialize(handle))
+        return scoped_ptr<GpuMemoryBufferImpl>();
+
+      return buffer.PassAs<GpuMemoryBufferImpl>();
+    }
     default:
       return scoped_ptr<GpuMemoryBufferImpl>();
   }