Improve BindBufferBase/BindBufferRange and a few other commands.

gpu/command_buffer/client/gles2_implementation_impl_autogen.h

Index: gpu/command_buffer/client/gles2_implementation_impl_autogen.h
diff --git a/gpu/command_buffer/client/gles2_implementation_impl_autogen.h b/gpu/command_buffer/client/gles2_implementation_impl_autogen.h
index 02551b4b4e6ec9b7cf21c63f14a27302359f3320..23eb9668011fbbadc30d05fe807414659e63e82a 100644
--- a/gpu/command_buffer/client/gles2_implementation_impl_autogen.h
+++ b/gpu/command_buffer/client/gles2_implementation_impl_autogen.h
@@ -41,7 +41,11 @@ void GLES2Implementation::BindBufferBase(GLenum target,
   GPU_CLIENT_LOG("[" << GetLogPrefix() << "] glBindBufferBase("
                      << GLES2Util::GetStringIndexedBufferTarget(target) << ", "
                      << index << ", " << buffer << ")");
-  helper_->BindBufferBase(target, index, buffer);
+  if (IsBufferReservedId(buffer)) {
+    SetGLError(GL_INVALID_OPERATION, "BindBufferBase", "buffer reserved id");
+    return;
+  }
+  BindBufferBaseHelper(target, index, buffer);
   CheckGLError();
 }
 
@@ -77,7 +81,11 @@ void GLES2Implementation::BindSampler(GLuint unit, GLuint sampler) {
   GPU_CLIENT_SINGLE_THREAD_CHECK();
   GPU_CLIENT_LOG("[" << GetLogPrefix() << "] glBindSampler(" << unit << ", "
                      << sampler << ")");
-  helper_->BindSampler(unit, sampler);
+  if (IsSamplerReservedId(sampler)) {
+    SetGLError(GL_INVALID_OPERATION, "BindSampler", "sampler reserved id");
+    return;
+  }
+  BindSamplerHelper(unit, sampler);
   CheckGLError();
 }
 
@@ -100,7 +108,12 @@ void GLES2Implementation::BindTransformFeedback(GLenum target,
   GPU_CLIENT_LOG("[" << GetLogPrefix() << "] glBindTransformFeedback("
                      << GLES2Util::GetStringTransformFeedbackBindTarget(target)
                      << ", " << transformfeedback << ")");
-  helper_->BindTransformFeedback(target, transformfeedback);
+  if (IsTransformFeedbackReservedId(transformfeedback)) {
+    SetGLError(GL_INVALID_OPERATION, "BindTransformFeedback",
+               "transformfeedback reserved id");
+    return;
+  }
+  BindTransformFeedbackHelper(target, transformfeedback);
   CheckGLError();
 }