Move the code in libcros' chromeos_speech_synthesis.cc into Chrome

chrome/browser/extensions/extension_tts_apitest.cc

Index: chrome/browser/extensions/extension_tts_apitest.cc
diff --git a/chrome/browser/extensions/extension_tts_apitest.cc b/chrome/browser/extensions/extension_tts_apitest.cc
index 71f263447b2d713ae601a8ca23e196e9550257fd..4c5b9355bc0ac29fbb9d730519c30b451ea7ec4a 100644
--- a/chrome/browser/extensions/extension_tts_apitest.cc
+++ b/chrome/browser/extensions/extension_tts_apitest.cc
@@ -17,10 +17,6 @@
 #define GMOCK_MUTANT_INCLUDE_LATE_OBJECT_BINDING
 #include "testing/gmock_mutant.h"
 
-#if defined(OS_CHROMEOS)
-#include "chrome/browser/chromeos/cros/cros_mock.h"
-#endif
-
 using ::testing::AnyNumber;
 using ::testing::CreateFunctor;
 using ::testing::DoAll;
@@ -305,17 +301,3 @@ IN_PROC_BROWSER_TEST_F(TtsApiTest, EngineWordCallbacks) {
 
   ASSERT_TRUE(RunExtensionTest("tts_engine/engine_word_callbacks")) << message_;
 }
-
-#if defined(OS_CHROMEOS)
-// Fails since v8 roll at r96374: http://crbug.com/92482
-IN_PROC_BROWSER_TEST_F(ExtensionApiTest, FAILS_TtsChromeOs) {
-  CommandLine::ForCurrentProcess()->AppendSwitch(
-      switches::kEnableExperimentalExtensionApis);
-
-  chromeos::CrosMock crosMock;
-  crosMock.InitMockSpeechSynthesisLibrary();
-  crosMock.SetSpeechSynthesisLibraryExpectations();
-
-  ASSERT_TRUE(RunExtensionTest("tts/chromeos")) << message_;
-}
-#endif