Make chrome.contextMenus and some browserAction APIs optional.

omega-target-chromium-extension/src/coffee/background_preload.coffee

@@ -3,6 +3,8 @@ localStorage['log'] = ''
 localStorage['logLastError'] = ''
 
 window.OmegaContextMenuQuickSwitchHandler = -> null
+
+if chrome.contextMenus?
   # We don't need this API. However its presence indicates that Chrome >= 35
   # which provides info.checked we need in contextMenu callback.
   # https://developer.chrome.com/extensions/contextMenus

omega-target-chromium-extension/src/module/external_api.coffee

@@ -22,7 +22,7 @@ module.exports = class ExternalApi
     return unless @disabled
 
     @options.setProxyNotControllable(null)
-    chrome.browserAction.setPopup({popup: 'popup/index.html'})
+    chrome.browserAction.setPopup?({popup: 'popup/index.html'})
     @options.reloadQuickSwitch()
     @disabled = false
     @options.clearBadge()
@@ -49,7 +49,7 @@ module.exports = class ExternalApi
           if @knownExts[port.sender.id] >= 32
             reason = 'upgrade'
           @options.setProxyNotControllable reason, {text: 'X', color: '#5ab432'}
-        chrome.browserAction.setPopup({popup: 'popup/index.html'})
+        chrome.browserAction.setPopup?({popup: 'popup/index.html'})
         port.postMessage({action: 'state', state: 'disabled'})
       when 'enable'
         @reenable()

omega-target-chromium-extension/src/module/inspect.coffee

@@ -8,6 +8,7 @@ module.exports = class Inspect
     @onInspect = onInspect
 
   enable: ->
+    return unless chrome.contextMenus?
     # We don't need this API. However its presence indicates that Chrome >= 35,
     # which provides the menuItemId we need in contextMenu callback.
     # https://developer.chrome.com/extensions/contextMenus

omega-target-chromium-extension/src/module/options.coffee

@@ -78,7 +78,7 @@ class ChromeOptions extends OmegaTarget.Options
     if @_proxyNotControllable
       @setBadge()
     else
-      chrome.browserAction.setBadgeText(text: '')
+      chrome.browserAction.setBadgeText?(text: '')
     return
 
   _formatBypassItem: (condition) ->
@@ -261,7 +261,7 @@ class ChromeOptions extends OmegaTarget.Options
     if not @_quickSwitchContextMenuCreated
       @_quickSwitchContextMenuCreated = true
       if quickSwitch
-        chrome.contextMenus.update('enableQuickSwitch', {checked: true})
+        chrome.contextMenus?.update('enableQuickSwitch', {checked: true})
       window.OmegaContextMenuQuickSwitchHandler = (info) =>
         changes = {}
         changes['-enableQuickSwitch'] = info.checked
@@ -273,7 +273,7 @@ class ChromeOptions extends OmegaTarget.Options
             )
 
     if quickSwitch
-      chrome.browserAction.setPopup({popup: ''})
+      chrome.browserAction.setPopup?({popup: ''})
       if not @_quickSwitchInit
         @_quickSwitchInit = true
         chrome.browserAction.onClicked.addListener (tab) =>
@@ -290,7 +290,7 @@ class ChromeOptions extends OmegaTarget.Options
               return if url.substr(0, 4) == 'moz-'
               chrome.tabs.reload(tab.id)
     else
-      chrome.browserAction.setPopup({popup: 'popup/index.html'})
+      chrome.browserAction.setPopup?({popup: 'popup/index.html'})
     Promise.resolve()
 
   setInspect: (settings) ->

omega-target-chromium-extension/src/module/tabs.coffee

@@ -39,7 +39,7 @@ class ChromeTabs
   processTab: (tab, changeInfo) ->
     if @_badgeTab
       for own id of @_badgeTab
-        try chrome.browserAction.setBadgeText(text: '', tabId: id)
+        try chrome.browserAction.setBadgeText?(text: '', tabId: id)
         @_badgeTab = null
     if not tab.url? or tab.url.indexOf("chrome") == 0
       if @_defaultAction
@@ -56,8 +56,8 @@ class ChromeTabs
   setTabBadge: (tab, badge) ->
     @_badgeTab ?= {}
     @_badgeTab[tab.id] = true
-    chrome.browserAction.setBadgeText(text: badge.text, tabId: tab.id)
+    chrome.browserAction.setBadgeText?(text: badge.text, tabId: tab.id)
-    chrome.browserAction.setBadgeBackgroundColor(
+    chrome.browserAction.setBadgeBackgroundColor?(
       color: badge.color
       tabId: tab.id
     )
@@ -77,11 +77,11 @@ class ChromeTabs
 
   _chromeSetIcon: (params) ->
     try
-      chrome.browserAction.setIcon(params, @ignoreError)
+      chrome.browserAction.setIcon?(params, @ignoreError)
     catch
       # Some legacy Chrome versions will panic if there are other icon sizes.
       params.imageData = {19: params.imageData[19], 38: params.imageData[38]}
-      chrome.browserAction.setIcon(params, @ignoreError)
+      chrome.browserAction.setIcon?(params, @ignoreError)
 
   clearIcon: (tabId) ->
     return unless @_defaultAction?.icon?