Add initial support for NV_path_rendering extension to gpu command buffer

gpu/command_buffer/service/gles2_cmd_decoder_autogen.h

Index: gpu/command_buffer/service/gles2_cmd_decoder_autogen.h
diff --git a/gpu/command_buffer/service/gles2_cmd_decoder_autogen.h b/gpu/command_buffer/service/gles2_cmd_decoder_autogen.h
index 08d17d2bd2e210685f19167af74fcbc350ac6a60..6bb9acf627dfa2216c4966943bd78374fdc487cf 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder_autogen.h
+++ b/gpu/command_buffer/service/gles2_cmd_decoder_autogen.h
@@ -3433,6 +3433,63 @@ error::Error GLES2DecoderImpl::HandleDrawBuffersEXTImmediate(
   return error::kNoError;
 }
 
+error::Error GLES2DecoderImpl::HandleMatrixMode(
+    uint32 immediate_data_size,
+    const gles2::cmds::MatrixMode& c) {
+  GLenum mode = static_cast<GLenum>(c.mode);
+  if (!validators_->matrix_mode.IsValid(mode)) {
+    LOCAL_SET_GL_ERROR_INVALID_ENUM("glMatrixMode", mode, "mode");
+    return error::kNoError;
+  }
+  if (state_.matrix_mode != mode) {
+    state_.matrix_mode = mode;
+    glMatrixMode(mode);
+  }
+  return error::kNoError;
+}
+
+error::Error GLES2DecoderImpl::HandleLoadMatrixf(
+    uint32 immediate_data_size,
+    const gles2::cmds::LoadMatrixf& c) {
+  uint32 data_size;
+  if (!ComputeDataSize(1, sizeof(GLfloat), 16, &data_size)) {
+    return error::kOutOfBounds;
+  }
+  const GLfloat* m =
+      GetSharedMemoryAs<const GLfloat*>(c.m_shm_id, c.m_shm_offset, data_size);
+  if (m == NULL) {
+    return error::kOutOfBounds;
+  }
+  glLoadMatrixf(m);
+  return error::kNoError;
+}
+
+error::Error GLES2DecoderImpl::HandleLoadMatrixfImmediate(
+    uint32 immediate_data_size,
+    const gles2::cmds::LoadMatrixfImmediate& c) {
+  uint32 data_size;
+  if (!ComputeDataSize(1, sizeof(GLfloat), 16, &data_size)) {
+    return error::kOutOfBounds;
+  }
+  if (data_size > immediate_data_size) {
+    return error::kOutOfBounds;
+  }
+  const GLfloat* m =
+      GetImmediateDataAs<const GLfloat*>(c, data_size, immediate_data_size);
+  if (m == NULL) {
+    return error::kOutOfBounds;
+  }
+  glLoadMatrixf(m);
+  return error::kNoError;
+}
+
+error::Error GLES2DecoderImpl::HandleLoadIdentity(
+    uint32 immediate_data_size,
+    const gles2::cmds::LoadIdentity& c) {
+  glLoadIdentity();
+  return error::kNoError;
+}
+
 bool GLES2DecoderImpl::SetCapabilityState(GLenum cap, bool enabled) {
   switch (cap) {
     case GL_BLEND: