Fixes the issues with Jump, JumpRel, Call, CallRel

gpu/command_buffer/service/cmd_parser_test.cc

Index: gpu/command_buffer/service/cmd_parser_test.cc
===================================================================
--- gpu/command_buffer/service/cmd_parser_test.cc	(revision 39125)
+++ gpu/command_buffer/service/cmd_parser_test.cc	(working copy)
@@ -225,10 +225,14 @@
 
 // Tests error conditions.
 TEST_F(CommandParserTest, TestError) {
-  scoped_ptr<CommandParser> parser(MakeParser(5));
+  const unsigned int kNumEntries = 5;
+  scoped_ptr<CommandParser> parser(MakeParser(kNumEntries));
   CommandBufferOffset put = parser->put();
   CommandHeader header;
 
+  EXPECT_FALSE(parser->set_get(-1));
+  EXPECT_FALSE(parser->set_get(kNumEntries));
+
   // Generate a command with size 0.
   header.size = 0;
   header.command = 3;