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diff --git a/WebKit/android/jni/DeviceMotionAndOrientationManager.cpp b/WebKit/android/jni/DeviceMotionAndOrientationManager.cpp
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+++ b/WebKit/android/jni/DeviceMotionAndOrientationManager.cpp
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+/*
+ * Copyright 2010, The Android Open Source Project
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "DeviceMotionAndOrientationManager.h"
+
+#include "DeviceMotionClientImpl.h"
+#include "DeviceOrientationClientImpl.h"
+#include "DeviceOrientationController.h"
+#include "WebViewCore.h"
+#include "Frame.h"
+#include "Page.h"
+
+#include <DeviceOrientationClientMock.h>
+#include <JNIHelp.h>
+
+using namespace WebCore;
+
+namespace android {
+
+DeviceMotionAndOrientationManager::DeviceMotionAndOrientationManager(WebViewCore* webViewCore)
+    : m_useMock(false)
+    , m_webViewCore(webViewCore)
+{
+}
+
+void DeviceMotionAndOrientationManager::useMock()
+{
+    m_useMock = true;
+}
+
+void DeviceMotionAndOrientationManager::setMockMotion(PassRefPtr<DeviceMotionData> motion)
+{
+    if (m_useMock)
+        ; // TODO: There is not yet a DeviceMotion mock.
+}
+
+void DeviceMotionAndOrientationManager::onMotionChange(PassRefPtr<DeviceMotionData> motion)
+{
+    ASSERT(!m_useMock);
+    static_cast<DeviceMotionClientImpl*>(m_motionClient.get())->onMotionChange(motion);
+}
+
+void DeviceMotionAndOrientationManager::setMockOrientation(PassRefPtr<DeviceOrientation> orientation)
+{
+    if (m_useMock)
+        static_cast<DeviceOrientationClientMock*>(orientationClient())->setOrientation(orientation);
+}
+
+void DeviceMotionAndOrientationManager::onOrientationChange(PassRefPtr<DeviceOrientation> orientation)
+{
+    ASSERT(!m_useMock);
+    static_cast<DeviceOrientationClientImpl*>(m_orientationClient.get())->onOrientationChange(orientation);
+}
+
+void DeviceMotionAndOrientationManager::maybeSuspendClients()
+{
+    if (!m_useMock) {
+        if (m_motionClient)
+            static_cast<DeviceMotionClientImpl*>(m_motionClient.get())->suspend();
+        if (m_orientationClient)
+            static_cast<DeviceOrientationClientImpl*>(m_orientationClient.get())->suspend();
+    }
+}
+
+void DeviceMotionAndOrientationManager::maybeResumeClients()
+{
+    if (!m_useMock) {
+        if (m_motionClient)
+            static_cast<DeviceMotionClientImpl*>(m_motionClient.get())->resume();
+        if (m_orientationClient)
+            static_cast<DeviceOrientationClientImpl*>(m_orientationClient.get())->resume();
+    }
+}
+
+DeviceMotionClient* DeviceMotionAndOrientationManager::motionClient()
+{
+    // TODO: There is not yet a DeviceMotion mock.
+    if (!m_motionClient)
+        m_motionClient.set(m_useMock ? 0
+                : static_cast<DeviceMotionClient*>(new DeviceMotionClientImpl(m_webViewCore)));
+    ASSERT(m_motionClient);
+    return m_motionClient.get();
+}
+
+DeviceOrientationClient* DeviceMotionAndOrientationManager::orientationClient()
+{
+    if (!m_orientationClient)
+        m_orientationClient.set(m_useMock ? new DeviceOrientationClientMock
+                : static_cast<DeviceOrientationClient*>(new DeviceOrientationClientImpl(m_webViewCore)));
+    ASSERT(m_orientationClient);
+    return m_orientationClient.get();
+}
+
+// JNI for android.webkit.DeviceMotionAndOrientationManager
+static const char* javaDeviceMotionAndOrientationManagerClass = "android/webkit/DeviceMotionAndOrientationManager";
+
+static WebViewCore* getWebViewCore(JNIEnv* env, jobject webViewCoreObject)
+{
+    jclass webViewCoreClass = env->FindClass("android/webkit/WebViewCore");
+    jfieldID nativeClassField = env->GetFieldID(webViewCoreClass, "mNativeClass", "I");
+    return reinterpret_cast<WebViewCore*>(env->GetIntField(webViewCoreObject, nativeClassField));
+}
+
+static void useMock(JNIEnv* env, jobject, jobject webViewCoreObject)
+{
+    getWebViewCore(env, webViewCoreObject)->deviceMotionAndOrientationManager()->useMock();
+}
+
+static void onMotionChange(JNIEnv* env, jobject, jobject webViewCoreObject, bool canProvideX, double x, bool canProvideY, double y, bool canProvideZ, double z, double interval)
+{
+    // We only provide accelerationIncludingGravity.
+    RefPtr<DeviceMotionData::Acceleration> accelerationIncludingGravity = DeviceMotionData::Acceleration::create(canProvideX, x, canProvideY, y, canProvideZ, z);
+    bool canProvideInterval = canProvideX || canProvideY || canProvideZ;
+    RefPtr<DeviceMotionData> motion = DeviceMotionData::create(0, accelerationIncludingGravity.release(), 0, canProvideInterval, interval);
+    getWebViewCore(env, webViewCoreObject)->deviceMotionAndOrientationManager()->onMotionChange(motion.release());
+}
+
+static void setMockOrientation(JNIEnv* env, jobject, jobject webViewCoreObject, bool canProvideAlpha, double alpha, bool canProvideBeta, double beta, bool canProvideGamma, double gamma)
+{
+    RefPtr<DeviceOrientation> orientation = DeviceOrientation::create(canProvideAlpha, alpha, canProvideBeta, beta, canProvideGamma, gamma);
+    getWebViewCore(env, webViewCoreObject)->deviceMotionAndOrientationManager()->setMockOrientation(orientation.release());
+}
+
+static void onOrientationChange(JNIEnv* env, jobject, jobject webViewCoreObject, bool canProvideAlpha, double alpha, bool canProvideBeta, double beta, bool canProvideGamma, double gamma)
+{
+    RefPtr<DeviceOrientation> orientation = DeviceOrientation::create(canProvideAlpha, alpha, canProvideBeta, beta, canProvideGamma, gamma);
+    getWebViewCore(env, webViewCoreObject)->deviceMotionAndOrientationManager()->onOrientationChange(orientation.release());
+}
+
+static JNINativeMethod gDeviceMotionAndOrientationManagerMethods[] = {
+    { "nativeUseMock", "(Landroid/webkit/WebViewCore;)V", (void*) useMock },
+    { "nativeOnMotionChange", "(Landroid/webkit/WebViewCore;ZDZDZDD)V", (void*) onMotionChange },
+    { "nativeSetMockOrientation", "(Landroid/webkit/WebViewCore;ZDZDZD)V", (void*) setMockOrientation },
+    { "nativeOnOrientationChange", "(Landroid/webkit/WebViewCore;ZDZDZD)V", (void*) onOrientationChange }
+};
+
+int register_device_orientation_manager(JNIEnv* env)
+{
+    jclass deviceOrientationManager = env->FindClass(javaDeviceMotionAndOrientationManagerClass);
+    LOG_ASSERT(deviceOrientationManager, "Unable to find class");
+    return jniRegisterNativeMethods(env, javaDeviceMotionAndOrientationManagerClass, gDeviceMotionAndOrientationManagerMethods, NELEM(gDeviceMotionAndOrientationManagerMethods));
+}
+
+} // namespace android