Handle renderer crash initialization using crash reporting preferences

  * Turn on renderer crash handling if selected in preferences and the platform is darwin

Auditors: @bbondy, @bridiver

Test Plan:

  In previous commit

js/entry.js

@@ -21,11 +21,21 @@ require('../less/notificationBar.less')
 require('../less/addEditBookmark.less')
 require('../node_modules/font-awesome/css/font-awesome.css')
 
-if (process.platform === 'darwin') {
-  // Setup the crash handling for mac renderer processes
-  // https://github.com/electron/electron/blob/master/docs/api/crash-reporter.md#crashreporterstartoptions
-  const CrashHerald = require('../app/crash-herald')
-  CrashHerald.init()
+// Enable or disable crash reporting based on platform
+const setupCrashReporting = () => {
+  if (process.platform === 'darwin') {
+    // Setup the crash handling for mac renderer processes
+    // https://github.com/electron/electron/blob/master/docs/api/crash-reporter.md#crashreporterstartoptions
+    console.log('Renderer crash reporting initialized')
+    require('../app/crash-herald').init()
+  } else {
+    console.log(`Unsupported crash reporting platform ${process.platform} for renderer crashes`)
+  }
+}
+
+// Notify that renderer crash reporting is disabled
+const disableCrashReporting = () => {
+  console.log('Disabling renderer crash reporting')
 }
 
 const React = require('react')
@@ -77,6 +87,12 @@ window.addEventListener('beforeunload', function () {
 
 // get appStore from url
 ipc.on(messages.INITIALIZE_WINDOW, (e, disposition, appState, frames, initWindowState) => {
+  // Configure renderer crash reporting
+  if (appState.settings[require('./constants/settings').SEND_CRASH_REPORTS] !== false) {
+    setupCrashReporting()
+  } else {
+    disableCrashReporting()
+  }
   appStoreRenderer.state = Immutable.fromJS(appState)
   ReactDOM.render(
     <Window includePinnedSites={disposition !== 'new-popup'} frames={frames} initWindowState={initWindowState} />,