linux: implement gpu plugin

gpu/command_buffer/service/gles2_cmd_decoder.cc

Index: gpu/command_buffer/service/gles2_cmd_decoder.cc
diff --git a/gpu/command_buffer/service/gles2_cmd_decoder.cc b/gpu/command_buffer/service/gles2_cmd_decoder.cc
index 413f3837569f711673d7946faa579bd5c68bc8f6..dedcd9d3ac4f5479f626450f920e71114f991280 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder.cc
+++ b/gpu/command_buffer/service/gles2_cmd_decoder.cc
@@ -14,6 +14,9 @@
 #include "gpu/command_buffer/service/gl_utils.h"
 #include "gpu/command_buffer/service/gles2_cmd_decoder.h"
 #include "gpu/command_buffer/service/gles2_cmd_validation.h"
+#if defined(OS_LINUX)
+#include "gpu/command_buffer/service/x_utils.h"
+#endif
 
 namespace gpu {
 namespace gles2 {
@@ -947,7 +950,6 @@ parse_error::ParseError GLES2DecoderImpl::DoCommand(
   parse_error::ParseError result;
   if (debug()) {
     // TODO(gman): Change output to something useful for NaCl.
-    const char* f = GetCommandName(command);
     printf("cmd: %s\n", GetCommandName(command));
   }
   unsigned int command_index = command - kStartPoint - 1;
@@ -1182,7 +1184,7 @@ void GLES2DecoderImpl::UpdateProgramInfo(GLuint program) {
         program, ii, max_len + 1, &length, &size, &type, name_buffer.get());
     // TODO(gman): Should we check for error?
     GLint location = glGetAttribLocation(program, name_buffer.get());
-    info->SetAttributeLocation(ii, num_attribs);
+    info->SetAttributeLocation(ii, location);
   }
 }
 
@@ -1722,4 +1724,3 @@ parse_error::ParseError GLES2DecoderImpl::HandleGetActiveAttrib(
 
 }  // namespace gles2
 }  // namespace gpu
-