[DevTools] Support device orientation override on device with sensors.

Source/modules/device_orientation/DeviceOrientationInspectorAgent.cpp

Index: Source/modules/device_orientation/DeviceOrientationInspectorAgent.cpp
diff --git a/Source/modules/device_orientation/DeviceOrientationInspectorAgent.cpp b/Source/modules/device_orientation/DeviceOrientationInspectorAgent.cpp
index 1b0ca14280a96d71e4dc0e7e937a1e22e0f33a70..e49ad92e5365d2707927e6c3c8ee8d54e5370653 100644
--- a/Source/modules/device_orientation/DeviceOrientationInspectorAgent.cpp
+++ b/Source/modules/device_orientation/DeviceOrientationInspectorAgent.cpp
@@ -8,6 +8,7 @@
 #include "core/dom/Document.h"
 #include "core/frame/LocalFrame.h"
 #include "core/inspector/InspectorController.h"
+#include "core/inspector/InspectorState.h"
 #include "core/page/Page.h"
 
 #include "modules/device_orientation/DeviceOrientationController.h"
@@ -15,6 +16,13 @@
 
 namespace WebCore {
 
+namespace DeviceOrientationInspectorAgentState {
+static const char alpha[] = "alpha";
+static const char beta[] = "beta";
+static const char gamma[] = "gamma";
+static const char overrideEnabled[] = "overrideEnabled";
+}
+
 void DeviceOrientationInspectorAgent::provideTo(Page& page)
 {
     OwnPtr<DeviceOrientationInspectorAgent> deviceOrientationAgent(adoptPtr(new DeviceOrientationInspectorAgent(page)));
@@ -31,16 +39,48 @@ DeviceOrientationInspectorAgent::DeviceOrientationInspectorAgent(Page& page)
 {
 }
 
-void DeviceOrientationInspectorAgent::setDeviceOrientationOverride(ErrorString* error, double alpha, double beta, double gamma)
+DeviceOrientationController& DeviceOrientationInspectorAgent::controller()
 {
     ASSERT(m_page.mainFrame()->document());
-    DeviceOrientationController& controller = DeviceOrientationController::from(*m_page.mainFrame()->document());
-    controller.didChangeDeviceOrientation(DeviceOrientationData::create(true, alpha, true, beta, true, gamma).get());
+    return DeviceOrientationController::from(*m_page.mainFrame()->document());
+}
+
+void DeviceOrientationInspectorAgent::setDeviceOrientationOverride(ErrorString* error, double alpha, double beta, double gamma)
+{
+    m_state->setBoolean(DeviceOrientationInspectorAgentState::overrideEnabled, true);
+    m_state->setDouble(DeviceOrientationInspectorAgentState::alpha, alpha);
+    m_state->setDouble(DeviceOrientationInspectorAgentState::beta, beta);
+    m_state->setDouble(DeviceOrientationInspectorAgentState::gamma, gamma);
+    controller().setOverride(DeviceOrientationData::create(true, alpha, true, beta, true, gamma).get());
 }
 
 void DeviceOrientationInspectorAgent::clearDeviceOrientationOverride(ErrorString* error)
 {
-    setDeviceOrientationOverride(error, 0, 0, 0);
+    m_state->setBoolean(DeviceOrientationInspectorAgentState::overrideEnabled, false);
+    controller().clearOverride();
+}
+
+void DeviceOrientationInspectorAgent::clearFrontend()
+{
+    m_state->setBoolean(DeviceOrientationInspectorAgentState::overrideEnabled, false);
+    controller().clearOverride();
+}
+
+void DeviceOrientationInspectorAgent::restore()
+{
+    if (m_state->getBoolean(DeviceOrientationInspectorAgentState::overrideEnabled)) {
+        double alpha = m_state->getDouble(DeviceOrientationInspectorAgentState::alpha);
+        double beta = m_state->getDouble(DeviceOrientationInspectorAgentState::beta);
+        double gamma = m_state->getDouble(DeviceOrientationInspectorAgentState::gamma);
+        controller().setOverride(DeviceOrientationData::create(true, alpha, true, beta, true, gamma).get());
+    }
+}
+
+void DeviceOrientationInspectorAgent::didCommitLoadForMainFrame()
+{
+    // New document in main frame - apply override there.
+    // No need to cleanup previous one, as it's already gone.
+    restore();
 }
 
 } // namespace WebCore