Revert r70896 to move speech input back behind a flag.

chrome/browser/speech/speech_input_browsertest.cc

Index: chrome/browser/speech/speech_input_browsertest.cc
diff --git a/chrome/browser/speech/speech_input_browsertest.cc b/chrome/browser/speech/speech_input_browsertest.cc
index 80e3dafc8c4d0548f7c1615ca2103ecfa3c94c6c..5563fe90993f3c00aa0a5bc0681ab5b52a06f181 100644
--- a/chrome/browser/speech/speech_input_browsertest.cc
+++ b/chrome/browser/speech/speech_input_browsertest.cc
@@ -94,10 +94,6 @@ class FakeSpeechInputManager : public SpeechInputManager {
 class SpeechInputBrowserTest : public InProcessBrowserTest {
  public:
   // InProcessBrowserTest methods
-  virtual void SetUpCommandLine(CommandLine* command_line) {
-    EXPECT_TRUE(!command_line->HasSwitch(switches::kDisableSpeechInput));
-  }
-
   GURL testUrl(const FilePath::CharType* filename) {
     const FilePath kTestDir(FILE_PATH_LITERAL("speech"));
     return ui_test_utils::GetTestUrl(kTestDir, FilePath(filename));