Reduce cost of glBind* on contexts without bind_generates_resource.

gpu/command_buffer/service/gles2_cmd_decoder_unittest.cc

Index: gpu/command_buffer/service/gles2_cmd_decoder_unittest.cc
diff --git a/gpu/command_buffer/service/gles2_cmd_decoder_unittest.cc b/gpu/command_buffer/service/gles2_cmd_decoder_unittest.cc
index 12f0db88d59c852b92b422c1ba8b236a662b5909..95610be57703b56627602b8c8ffe889f371f519b 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder_unittest.cc
+++ b/gpu/command_buffer/service/gles2_cmd_decoder_unittest.cc
@@ -5663,19 +5663,23 @@ TEST_F(GLES2DecoderManualInitTest, BindGeneratesResourceFalse) {
 
   BindTexture cmd1;
   cmd1.Init(GL_TEXTURE_2D, kInvalidClientId);
-  EXPECT_NE(error::kNoError, ExecuteCmd(cmd1));
+  EXPECT_EQ(error::kNoError, ExecuteCmd(cmd1));
+  EXPECT_EQ(GL_INVALID_OPERATION, GetGLError());
 
   BindBuffer cmd2;
   cmd2.Init(GL_ARRAY_BUFFER, kInvalidClientId);
-  EXPECT_NE(error::kNoError, ExecuteCmd(cmd2));
+  EXPECT_EQ(error::kNoError, ExecuteCmd(cmd2));
+  EXPECT_EQ(GL_INVALID_OPERATION, GetGLError());
 
   BindFramebuffer cmd3;
   cmd3.Init(GL_FRAMEBUFFER, kInvalidClientId);
-  EXPECT_NE(error::kNoError, ExecuteCmd(cmd3));
+  EXPECT_EQ(error::kNoError, ExecuteCmd(cmd3));
+  EXPECT_EQ(GL_INVALID_OPERATION, GetGLError());
 
   BindRenderbuffer cmd4;
   cmd4.Init(GL_RENDERBUFFER, kInvalidClientId);
-  EXPECT_NE(error::kNoError, ExecuteCmd(cmd4));
+  EXPECT_EQ(error::kNoError, ExecuteCmd(cmd4));
+  EXPECT_EQ(GL_INVALID_OPERATION, GetGLError());
 }
 
 TEST_F(GLES2DecoderManualInitTest, ARBTextureRectangleBindTexture) {