Battery Status API: add testing support for LayoutTests.

content/test/layouttest_support.cc

Index: content/test/layouttest_support.cc
diff --git a/content/test/layouttest_support.cc b/content/test/layouttest_support.cc
index 648771015c3e8b2161aa254c2b3ada38870f995b..31d4791abca4a38198456fe2ad439047af6bf93d 100644
--- a/content/test/layouttest_support.cc
+++ b/content/test/layouttest_support.cc
@@ -19,6 +19,7 @@
 #include "content/shell/renderer/test_runner/web_frame_test_proxy.h"
 #include "content/shell/renderer/test_runner/web_test_proxy.h"
 #include "content/test/test_media_stream_client.h"
+#include "third_party/WebKit/public/platform/WebBatteryStatus.h"
 #include "third_party/WebKit/public/platform/WebDeviceMotionData.h"
 #include "third_party/WebKit/public/platform/WebDeviceOrientationData.h"
 #include "third_party/WebKit/public/platform/WebGamepads.h"
@@ -28,6 +29,7 @@
 #include "content/browser/renderer_host/popup_menu_helper_mac.h"
 #endif
 
+using blink::WebBatteryStatus;
 using blink::WebDeviceMotionData;
 using blink::WebDeviceOrientationData;
 using blink::WebGamepad;
@@ -117,6 +119,10 @@ void ResetMockScreenOrientation()
   RendererWebKitPlatformSupportImpl::ResetMockScreenOrientationForTesting();
 }
 
+void MockBatteryStatusChanged(const WebBatteryStatus& status) {
+  RendererWebKitPlatformSupportImpl::MockBatteryStatusChanged(status);

[jochen (gone - plz use gerrit), 2014/05/28 12:08:17]

should the battery status be reset between tests?

[timvolodine, 2014/05/29 08:52:06]

good point, I've added a ResetBatteryStatus method in testRunner for this
purpose.

+}
+
 void EnableRendererLayoutTestMode() {
   RenderThreadImpl::current()->set_layout_test_mode(true);
 }