Pull gpu CmdBuf service/client shared GpuMemoryBuffer code to common

gpu/command_buffer/common/BUILD.gn

Index: gpu/command_buffer/common/BUILD.gn
diff --git a/gpu/command_buffer/common/BUILD.gn b/gpu/command_buffer/common/BUILD.gn
index 5952a94e3fe4dcfc09e2470e2b062b7eead28427..445ca0611a30c42685be8c2fdaa74e5cd28f311b 100644
--- a/gpu/command_buffer/common/BUILD.gn
+++ b/gpu/command_buffer/common/BUILD.gn
@@ -41,6 +41,8 @@ source_set("common_sources") {
     "gles2_cmd_format_autogen.h",
     "gles2_cmd_ids.h",
     "gles2_cmd_ids_autogen.h",
+    "gpu_memory_buffer_support.cc",
+    "gpu_memory_buffer_support.h",
     "id_allocator.cc",
     "id_allocator.h",
     "id_type.h",
@@ -58,6 +60,11 @@ source_set("common_sources") {
 
   configs += [ "//gpu:gpu_implementation" ]
 
+  public_deps = [
+    "//ui/gfx:memory_buffer",
+    "//ui/gfx/geometry",
+  ]
+
   deps = [
     ":gles2_utils",
     "//base",