Hookup clear_uniforms_before_first_program_use workaround with implementation.

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 ceda69078255f13c443835c1b9195036511ac5a0..0fb5d5fcd261f777d86d964491b270307f958ffe 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder_unittest.cc
+++ b/gpu/command_buffer/service/gles2_cmd_decoder_unittest.cc
@@ -8824,6 +8824,57 @@ TEST_F(GLES2DecoderRestoreStateTest, NonDefaultUnit1) {
   GetDecoder()->RestoreAllTextureUnitBindings(&prev_state);
 }
 
+TEST_F(GLES2DecoderManualInitTest, ClearUniformsBeforeFirstProgramUse) {
+  CommandLine command_line(0, NULL);
+  command_line.AppendSwitchASCII(
+      switches::kGpuDriverBugWorkarounds,
+      base::IntToString(gpu::CLEAR_UNIFORMS_BEFORE_FIRST_PROGRAM_USE));
+  InitDecoderWithCommandLine(
+      "",      // extensions
+      "3.0",   // gl version
+      true,    // has alpha
+      false,   // has depth
+      false,   // has stencil
+      true,    // request alpha
+      false,   // request depth
+      false,   // request stencil
+      true,    // bind generates resource
+      &command_line);
+  {
+    static AttribInfo attribs[] = {
+      { kAttrib1Name, kAttrib1Size, kAttrib1Type, kAttrib1Location, },
+      { kAttrib2Name, kAttrib2Size, kAttrib2Type, kAttrib2Location, },
+      { kAttrib3Name, kAttrib3Size, kAttrib3Type, kAttrib3Location, },
+    };
+    static UniformInfo uniforms[] = {
+      { kUniform1Name, kUniform1Size, kUniform1Type,
+        kUniform1FakeLocation, kUniform1RealLocation,
+        kUniform1DesiredLocation },
+      { kUniform2Name, kUniform2Size, kUniform2Type,
+        kUniform2FakeLocation, kUniform2RealLocation,
+        kUniform2DesiredLocation },
+      { kUniform3Name, kUniform3Size, kUniform3Type,
+        kUniform3FakeLocation, kUniform3RealLocation,
+        kUniform3DesiredLocation },
+    };
+    SetupShader(attribs, arraysize(attribs), uniforms, arraysize(uniforms),
+                client_program_id_, kServiceProgramId,
+                client_vertex_shader_id_, kServiceVertexShaderId,
+                client_fragment_shader_id_, kServiceFragmentShaderId);
+    TestHelper::SetupExpectationsForClearingUniforms(
+        gl_.get(), uniforms, arraysize(uniforms));
+  }
+
+  {
+    EXPECT_CALL(*gl_, UseProgram(kServiceProgramId))
+        .Times(1)
+        .RetiresOnSaturation();
+    cmds::UseProgram cmd;
+    cmd.Init(client_program_id_);
+    EXPECT_EQ(error::kNoError, ExecuteCmd(cmd));
+  }
+}
+
 // TODO(gman): Complete this test.
 // TEST_F(GLES2DecoderTest, CompressedTexImage2DGLError) {
 // }