Split Camera and Mic into two permissions on the Site Details page (under Site Settings).

chrome/browser/android/preferences/pref_service_bridge.cc

Index: chrome/browser/android/preferences/pref_service_bridge.cc
diff --git a/chrome/browser/android/preferences/pref_service_bridge.cc b/chrome/browser/android/preferences/pref_service_bridge.cc
index 189bab02f82599e387933ff5ea45fbc2ee52fc3c..0d05ec172e361e8a309b04802b87f8b7a9570b54 100644
--- a/chrome/browser/android/preferences/pref_service_bridge.cc
+++ b/chrome/browser/android/preferences/pref_service_bridge.cc
@@ -488,14 +488,19 @@ static void SetAllowLocationEnabled(JNIEnv* env,
       is_enabled ? CONTENT_SETTING_ASK : CONTENT_SETTING_BLOCK);
 }
 
-static void SetCameraMicEnabled(JNIEnv* env, jobject obj, jboolean allow) {
+static void SetCameraEnabled(JNIEnv* env, jobject obj, jboolean allow) {
   HostContentSettingsMap* host_content_settings_map =
       GetOriginalProfile()->GetHostContentSettingsMap();
   host_content_settings_map->SetDefaultContentSetting(
-      CONTENT_SETTINGS_TYPE_MEDIASTREAM_MIC,
+      CONTENT_SETTINGS_TYPE_MEDIASTREAM_CAMERA,
       allow ? CONTENT_SETTING_ASK : CONTENT_SETTING_BLOCK);
+}
+
+static void SetMicEnabled(JNIEnv* env, jobject obj, jboolean allow) {
+  HostContentSettingsMap* host_content_settings_map =
+      GetOriginalProfile()->GetHostContentSettingsMap();
   host_content_settings_map->SetDefaultContentSetting(
-      CONTENT_SETTINGS_TYPE_MEDIASTREAM_CAMERA,
+      CONTENT_SETTINGS_TYPE_MEDIASTREAM_MIC,
       allow ? CONTENT_SETTING_ASK : CONTENT_SETTING_BLOCK);
 }
 
@@ -598,26 +603,34 @@ static void SetPasswordEchoEnabled(JNIEnv* env,
                                passwordEchoEnabled);
 }
 
-
-static jboolean GetCameraMicEnabled(JNIEnv* env, jobject obj) {
-  return GetBooleanForContentSetting(CONTENT_SETTINGS_TYPE_MEDIASTREAM_MIC) &&
-         GetBooleanForContentSetting(CONTENT_SETTINGS_TYPE_MEDIASTREAM_CAMERA);
+static jboolean GetCameraEnabled(JNIEnv* env, jobject obj) {
+  return GetBooleanForContentSetting(CONTENT_SETTINGS_TYPE_MEDIASTREAM_CAMERA);
 }
 
-static jboolean GetCameraMicUserModifiable(JNIEnv* env, jobject obj) {
+static jboolean GetCameraUserModifiable(JNIEnv* env, jobject obj) {
   return IsContentSettingUserModifiable(
-             CONTENT_SETTINGS_TYPE_MEDIASTREAM_MIC) &&
-         IsContentSettingUserModifiable(
              CONTENT_SETTINGS_TYPE_MEDIASTREAM_CAMERA);
 }
 
-static jboolean GetCameraMicManagedByCustodian(JNIEnv* env, jobject obj) {
+static jboolean GetCameraManagedByCustodian(JNIEnv* env, jobject obj) {
   return IsContentSettingManagedByCustodian(
-             CONTENT_SETTINGS_TYPE_MEDIASTREAM_MIC) &&
-         IsContentSettingManagedByCustodian(
              CONTENT_SETTINGS_TYPE_MEDIASTREAM_CAMERA);
 }
 
+static jboolean GetMicEnabled(JNIEnv* env, jobject obj) {
+  return GetBooleanForContentSetting(CONTENT_SETTINGS_TYPE_MEDIASTREAM_MIC);
+}
+
+static jboolean GetMicUserModifiable(JNIEnv* env, jobject obj) {
+  return IsContentSettingUserModifiable(
+             CONTENT_SETTINGS_TYPE_MEDIASTREAM_MIC);
+}
+
+static jboolean GetMicManagedByCustodian(JNIEnv* env, jobject obj) {
+  return IsContentSettingManagedByCustodian(
+             CONTENT_SETTINGS_TYPE_MEDIASTREAM_MIC);
+}
+
 static jboolean GetAutologinEnabled(JNIEnv* env, jobject obj) {
   return GetPrefService()->GetBoolean(prefs::kAutologinEnabled);
 }