Added Chrome-side support for EXT_blend_minmax WebGL extension

gpu/command_buffer/service/feature_info_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "gpu/command_buffer/service/feature_info.h"
 
 #include "base/command_line.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/string_number_conversions.h"
 #include "gpu/command_buffer/service/gpu_switches.h"
@@ skipping 298 matching lines @@
   EXPECT_FALSE(info_->validators()->render_buffer_format.IsValid(
       GL_DEPTH_COMPONENT24));
   EXPECT_FALSE(info_->validators()->texture_parameter.IsValid(
       GL_TEXTURE_USAGE_ANGLE));
   EXPECT_FALSE(info_->validators()->texture_internal_format_storage.IsValid(
       GL_DEPTH_COMPONENT16));
   EXPECT_FALSE(info_->validators()->texture_internal_format_storage.IsValid(
       GL_DEPTH_COMPONENT32_OES));
   EXPECT_FALSE(info_->validators()->texture_internal_format_storage.IsValid(
       GL_DEPTH24_STENCIL8_OES));
+  EXPECT_FALSE(info_->validators()->equation.IsValid(GL_MIN_EXT));
+  EXPECT_FALSE(info_->validators()->equation.IsValid(GL_MAX_EXT));
 }
 
 TEST_F(FeatureInfoTest, InitializeWithANGLE) {
   SetupInitExpectationsWithGLVersion("", kGLRendererStringANGLE, "");
   EXPECT_TRUE(info_->feature_flags().is_angle);
 }
 
 TEST_F(FeatureInfoTest, InitializeNPOTExtensionGLES) {
   SetupInitExpectations("GL_OES_texture_npot");
   EXPECT_THAT(info_->extensions(), HasSubstr("GL_OES_texture_npot"));
@@ skipping 616 matching lines @@
   CommandLine command_line(0, NULL);
   command_line.AppendSwitchASCII(
       switches::kGpuDriverBugWorkarounds,
       base::IntToString(gpu::USE_CLIENT_SIDE_ARRAYS_FOR_STREAM_BUFFERS));
   SetupInitExpectationsWithCommandLine("GL_OES_vertex_array_object",
                                        command_line);
   EXPECT_TRUE(info_->workarounds().use_client_side_arrays_for_stream_buffers);
   EXPECT_FALSE(info_->feature_flags().native_vertex_array_object);
 }
 
+TEST_F(FeatureInfoTest, InitializeEXT_blend_minmax) {
+  SetupInitExpectations("GL_EXT_blend_minmax");
+  EXPECT_THAT(info_->extensions(), HasSubstr("GL_EXT_blend_minmax"));
+  EXPECT_TRUE(info_->validators()->equation.IsValid(GL_MIN_EXT));
+  EXPECT_TRUE(info_->validators()->equation.IsValid(GL_MAX_EXT));
+}
+
 TEST_F(FeatureInfoTest, InitializeEXT_frag_depth) {
   SetupInitExpectations("GL_EXT_frag_depth");
   EXPECT_TRUE(info_->feature_flags().ext_frag_depth);
   EXPECT_THAT(info_->extensions(), HasSubstr("GL_EXT_frag_depth"));
 }
 
 TEST_F(FeatureInfoTest, InitializeEXT_shader_texture_lod) {
   SetupInitExpectations("GL_EXT_shader_texture_lod");
   EXPECT_TRUE(info_->feature_flags().ext_shader_texture_lod);
   EXPECT_THAT(info_->extensions(), HasSubstr("GL_EXT_shader_texture_lod"));
@@ skipping 72 matching lines @@
       base::IntToString(gpu::MAX_TEXTURE_SIZE_LIMIT_4096));
   // Workarounds should get parsed without the need for a context.
   SetupWithCommandLine(command_line);
   EXPECT_TRUE(info_->workarounds().exit_on_context_lost);
   EXPECT_EQ(1024, info_->workarounds().max_cube_map_texture_size);
   EXPECT_EQ(4096, info_->workarounds().max_texture_size);
 }
 
 }  // namespace gles2
 }  // namespace gpu