Add GPU command buffer sevice and protobuf to GN build

Add GPU command buffer sevice and protobuf to GN build

Adds a protobuf target and a template for defining protos. This handles doing host builds of protoc when cross-compiling.

The command buffer sevice wants more optimization on Android, so this patch generalizes the solution. Normally Android, like Windows, optimizes for size. This now adds support on Android for speed optimization just like Windows does. Mac & Linux always optimize for speed.

Removes the declare_args call around the gcc_version. This was parameterized to be different if is_android was set, which isn't valid because build parameters can't vary across toolchains. Since this value is derived from the environment, I just removed the declare_args call.

BUG=
R=piman@chromium.org

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=271941

[piman, 2014-05-20 01:26:16]

https://codereview.chromium.org/289953004/diff/40001/gpu/gpu.gyp
File gpu/gpu.gyp (right):

https://codereview.chromium.org/289953004/diff/40001/gpu/gpu.gyp#newcode207
gpu/gpu.gyp:207: 'command_buffer/client/vertex_array_objectmanager_unittest.cc',
typo?

[brettw, 2014-05-20 02:35:35]

New snap up

https://codereview.chromium.org/289953004/diff/40001/gpu/gpu.gyp
File gpu/gpu.gyp (right):

https://codereview.chromium.org/289953004/diff/40001/gpu/gpu.gyp#newcode207
gpu/gpu.gyp:207: 'command_buffer/client/vertex_array_objectmanager_unittest.cc',
Oh yeah, I fixed that already but forgot to upload.

[piman, 2014-05-20 02:48:05]

lgtm

[brettw, 2014-05-21 19:42:36]

Committed patchset #10 manually as r271941.