gpu: Add support for GLX_EXT_texture_from_pixmap extension.

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 0376efc4d41f7b3c720512447154e0007b288352..73763686c1e77939b10ab0bdf02c8c11191db495 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder_unittest.cc
+++ b/gpu/command_buffer/service/gles2_cmd_decoder_unittest.cc
@@ -7425,6 +7425,42 @@ TEST_F(GLES2DecoderWithShaderTest, BindUniformLocationCHROMIUM) {
   EXPECT_EQ(GL_INVALID_VALUE, GetGLError());
 }
 
+TEST_F(GLES2DecoderTest, TexImagePixmap2DCHROMIUM) {
+  DoBindTexture(GL_TEXTURE_2D, client_texture_id_, kServiceTextureId);
+  DoTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 3, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE,
+               0, 0);
+  TextureManager::TextureInfo* info =
+      group().texture_manager()->GetTextureInfo(client_texture_id_);
+  EXPECT_EQ(kServiceTextureId, info->service_id());
+
+  GLsizei width;
+  GLsizei height;
+  GLenum type;
+  GLenum internal_format;
+
+  EXPECT_TRUE(info->GetLevelSize(GL_TEXTURE_2D, 0, &width, &height));
+  EXPECT_EQ(3, width);
+  EXPECT_EQ(1, height);
+  EXPECT_TRUE(info->GetLevelType(GL_TEXTURE_2D, 0, &type, &internal_format));
+  EXPECT_EQ(static_cast<GLenum>(GL_RGBA), internal_format);
+  EXPECT_EQ(static_cast<GLenum>(GL_UNSIGNED_BYTE), type);
+  EXPECT_TRUE(info->GetLevelImage(GL_TEXTURE_2D, 0) == NULL);
+
+  // Bind pixmap to texture.
+  TexImagePixmap2DCHROMIUM tex_image_pixmap_2d_cmd;
+  tex_image_pixmap_2d_cmd.Init(GL_TEXTURE_2D, 1);
+  EXPECT_EQ(error::kNoError, ExecuteCmd(tex_image_pixmap_2d_cmd));
+  EXPECT_TRUE(info->GetLevelSize(GL_TEXTURE_2D, 0, &width, &height));
+  // Image should now be set.
+  EXPECT_FALSE(info->GetLevelImage(GL_TEXTURE_2D, 0) == NULL);
+
+  // Define new texture image.
+  DoTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 3, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE,
+               0, 0);
+  EXPECT_TRUE(info->GetLevelSize(GL_TEXTURE_2D, 0, &width, &height));
+  // Image should no longer be set.
+  EXPECT_TRUE(info->GetLevelImage(GL_TEXTURE_2D, 0) == NULL);
+}
 
 // TODO(gman): Complete this test.
 // TEST_F(GLES2DecoderTest, CompressedTexImage2DGLError) {