Mandoline UI Process: Update namespaces and file names

components/mus/gles2/mojo_gpu_memory_buffer.cc

Index: components/mus/gles2/mojo_gpu_memory_buffer.cc
diff --git a/components/mus/gles2/mojo_gpu_memory_buffer.cc b/components/mus/gles2/mojo_gpu_memory_buffer.cc
index c5aaef12edb8d3510961a045aad2c5ffdc8a0229..fac4629e29e78ae62ddfb3364c6c165ed04f54dd 100644
--- a/components/mus/gles2/mojo_gpu_memory_buffer.cc
+++ b/components/mus/gles2/mojo_gpu_memory_buffer.cc
@@ -9,7 +9,7 @@
 #include "base/numerics/safe_conversions.h"
 #include "ui/gfx/buffer_format_util.h"
 
-namespace gles2 {
+namespace mus {
 
 MojoGpuMemoryBufferImpl::MojoGpuMemoryBufferImpl(
     const gfx::Size& size,
@@ -97,4 +97,4 @@ ClientBuffer MojoGpuMemoryBufferImpl::AsClientBuffer() {
   return reinterpret_cast<ClientBuffer>(this);
 }
 
-}  // namespace gles2
+}  // namespace mus