Battery Status API: add testing support for LayoutTests.

content/shell/renderer/test_runner/WebTestDelegate.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_SHELL_RENDERER_TEST_RUNNER_WEBTESTDELEGATE_H_
 #define CONTENT_SHELL_RENDERER_TEST_RUNNER_WEBTESTDELEGATE_H_
 
 #include <string>
 
 #include "third_party/WebKit/public/platform/WebScreenOrientationType.h"
 #include "third_party/WebKit/public/platform/WebString.h"
 #include "third_party/WebKit/public/platform/WebURL.h"
 #include "third_party/WebKit/public/platform/WebVector.h"
 
 #define WEBTESTRUNNER_NEW_HISTORY_CAPTURE
 
 namespace blink {
+class WebBatteryStatus;
 class WebDeviceMotionData;
 class WebDeviceOrientationData;
 class WebFrame;
 class WebGamepad;
 class WebGamepads;
 class WebHistoryItem;
 struct WebRect;
 struct WebSize;
 struct WebURLError;
 }
@@ skipping 24 matching lines @@
     virtual void setDeviceMotionData(const blink::WebDeviceMotionData&) = 0;
     // Set data to return when registering via Platform::setDeviceOrientationListener().
     virtual void setDeviceOrientationData(const blink::WebDeviceOrientationData&) = 0;
 
     // Set orientation to set when registering via Platform::setScreenOrientationListener().
     virtual void setScreenOrientation(const blink::WebScreenOrientationType&) = 0;
 
     // Reset the screen orientation data used for testing.
     virtual void resetScreenOrientation() = 0;
 
+    // Notifies blink about a change in battery status.
+    virtual void didChangeBatteryStatus(const blink::WebBatteryStatus&) = 0;
+
     // Add a message to the text dump for the layout test.
     virtual void printMessage(const std::string& message) = 0;
 
     // The delegate takes ownership of the WebTask objects and is responsible
     // for deleting them.
     virtual void postTask(WebTask*) = 0;
     virtual void postDelayedTask(WebTask*, long long ms) = 0;
 
     // Register a new isolated filesystem with the given files, and return the
     // new filesystem id.
@@ skipping 82 matching lines @@
     virtual bool allowExternalPages() = 0;
 
     // Returns a text dump the back/forward history for the WebView associated
     // with the given WebTestProxyBase.
     virtual std::string dumpHistoryForWindow(WebTestProxyBase*) = 0;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_SHELL_RENDERER_TEST_RUNNER_WEBTESTDELEGATE_H_