Destroy all Singletons and LazyInstances between each test.

gpu/command_buffer/service/shader_translator.cc

Index: gpu/command_buffer/service/shader_translator.cc
diff --git a/gpu/command_buffer/service/shader_translator.cc b/gpu/command_buffer/service/shader_translator.cc
index 2e5541d3540652f2f20481d548ef47e41f700ea0..54da2246c57e9bc684bddda74a75b2965827779b 100644
--- a/gpu/command_buffer/service/shader_translator.cc
+++ b/gpu/command_buffer/service/shader_translator.cc
@@ -14,17 +14,19 @@ namespace {
 
 using gpu::gles2::ShaderTranslator;
 
+static bool g_shader_initalized_ = false;
+
 void FinalizeShaderTranslator(void* /* dummy */) {
   ShFinalize();
+  g_shader_initalized_ = false;
 }
 
 bool InitializeShaderTranslator() {
-  static bool initialized = false;
-  if (!initialized && ShInitialize()) {
+  if (!g_shader_initalized_ && ShInitialize()) {
     base::AtExitManager::RegisterCallback(&FinalizeShaderTranslator, NULL);
-    initialized = true;
+    g_shader_initalized_ = true;
   }
-  return initialized;
+  return g_shader_initalized_;
 }
 
 #if !defined(ANGLE_SH_VERSION) || ANGLE_SH_VERSION < 108