Adds support for the GL_ANGLE_texture_usage and GL_EXT_texture_storage

gpu/command_buffer/service/texture_manager_unittest.cc

Index: gpu/command_buffer/service/texture_manager_unittest.cc
===================================================================
--- gpu/command_buffer/service/texture_manager_unittest.cc	(revision 112643)
+++ gpu/command_buffer/service/texture_manager_unittest.cc	(working copy)
@@ -124,6 +124,24 @@
   EXPECT_EQ(static_cast<GLenum>(GL_CLAMP_TO_EDGE), info->wrap_t());
 }
 
+TEST_F(TextureManagerTest, TextureUsageExt) {

[greggman, 2011/12/02 18:33:24]

Should there be a test that SetParameter returns false if the extension is not
enabled?

[vangelis, 2011/12/03 00:19:53]

Added a GLES2DecoderTest for it.

+  TestHelper::SetupTextureManagerInitExpectations(gl_.get(), "GL_ANGLE_texture_usage");

[vangelis, 2011/12/03 00:19:53]

Done.

+  manager_.Initialize(&feature_info_);
+  const GLuint kClient1Id = 1;
+  const GLuint kService1Id = 11;
+  // Check we can create texture.
+  manager_.CreateTextureInfo(&feature_info_, kClient1Id, kService1Id);
+  // Check texture got created.
+  TextureManager::TextureInfo* info = manager_.GetTextureInfo(kClient1Id);
+  ASSERT_TRUE(info != NULL);
+  EXPECT_TRUE(manager_.SetParameter(
+      &feature_info_, info, GL_TEXTURE_USAGE_ANGLE,
+      GL_FRAMEBUFFER_ATTACHMENT_ANGLE));
+  EXPECT_EQ(static_cast<GLenum>(GL_FRAMEBUFFER_ATTACHMENT_ANGLE),
+            info->usage());
+}
+
+
 TEST_F(TextureManagerTest, Destroy) {
   const GLuint kClient1Id = 1;
   const GLuint kService1Id = 11;