Expose microphone content setting to extensions.

chrome/browser/extensions/api/content_settings/content_settings_apitest.cc

Index: chrome/browser/extensions/api/content_settings/content_settings_apitest.cc
diff --git a/chrome/browser/extensions/api/content_settings/content_settings_apitest.cc b/chrome/browser/extensions/api/content_settings/content_settings_apitest.cc
index 5bf6bc47bb21459c851bfc38ef3257c528ba65f3..b9a1f39b948e7131f66128efce16de381e4e7fd1 100644
--- a/chrome/browser/extensions/api/content_settings/content_settings_apitest.cc
+++ b/chrome/browser/extensions/api/content_settings/content_settings_apitest.cc
@@ -111,6 +111,11 @@ class ExtensionContentSettingsApiTest : public ExtensionApiTest {
                                      example_url,
                                      CONTENT_SETTINGS_TYPE_MOUSELOCK,
                                      std::string()));
+    EXPECT_EQ(CONTENT_SETTING_ASK,
+              map->GetContentSetting(example_url,
+                                     example_url,
+                                     CONTENT_SETTINGS_TYPE_MEDIASTREAM_MIC,
+                                     std::string()));
 
     // Check content settings for www.google.com
     GURL url("http://www.google.com");
@@ -137,6 +142,9 @@ class ExtensionContentSettingsApiTest : public ExtensionApiTest {
     EXPECT_EQ(CONTENT_SETTING_BLOCK,
         map->GetContentSetting(
             url, url, CONTENT_SETTINGS_TYPE_MOUSELOCK, std::string()));
+    EXPECT_EQ(CONTENT_SETTING_BLOCK,
+        map->GetContentSetting(
+            url, url, CONTENT_SETTINGS_TYPE_MEDIASTREAM_MIC, std::string()));
   }
 
   void CheckContentSettingsDefault() {
@@ -172,6 +180,9 @@ class ExtensionContentSettingsApiTest : public ExtensionApiTest {
     EXPECT_EQ(CONTENT_SETTING_ASK,
         map->GetContentSetting(
             url, url, CONTENT_SETTINGS_TYPE_MOUSELOCK, std::string()));
+    EXPECT_EQ(CONTENT_SETTING_ASK,
+        map->GetContentSetting(
+            url, url, CONTENT_SETTINGS_TYPE_MEDIASTREAM_MIC, std::string()));
   }
 
  private: