Update idle extension API to use BrowserContext.

chrome/browser/extensions/api/idle/idle_api.h

Index: chrome/browser/extensions/api/idle/idle_api.h
diff --git a/chrome/browser/extensions/api/idle/idle_api.h b/chrome/browser/extensions/api/idle/idle_api.h
index f74f92b5af2a028fd5c833a317c25e2beab2c0cc..bf0dcc52cffa48fafc45c9d59e08e85d5d25cdc2 100644
--- a/chrome/browser/extensions/api/idle/idle_api.h
+++ b/chrome/browser/extensions/api/idle/idle_api.h
@@ -5,13 +5,13 @@
 #ifndef CHROME_BROWSER_EXTENSIONS_API_IDLE_IDLE_API_H_
 #define CHROME_BROWSER_EXTENSIONS_API_IDLE_IDLE_API_H_
 
-#include "chrome/browser/extensions/chrome_extension_function.h"
 #include "chrome/browser/idle.h"
+#include "extensions/browser/extension_function.h"
 
 namespace extensions {
 
 // Implementation of the chrome.idle.queryState API.
-class IdleQueryStateFunction : public ChromeAsyncExtensionFunction {
+class IdleQueryStateFunction : public AsyncExtensionFunction {
  public:
   DECLARE_EXTENSION_FUNCTION("idle.queryState", IDLE_QUERYSTATE)
 
@@ -26,7 +26,7 @@ class IdleQueryStateFunction : public ChromeAsyncExtensionFunction {
 };
 
 // Implementation of the chrome.idle.setDetectionInterval API.
-class IdleSetDetectionIntervalFunction : public ChromeSyncExtensionFunction {
+class IdleSetDetectionIntervalFunction : public SyncExtensionFunction {
  public:
   DECLARE_EXTENSION_FUNCTION("idle.setDetectionInterval",
                              IDLE_SETDETECTIONINTERVAL)