Reland of [DevTools] Move screen orientation override to RenderWidgetScreenMetricsEmulator.

third_party/WebKit/Source/web/DevToolsEmulator.cpp

Index: third_party/WebKit/Source/web/DevToolsEmulator.cpp
diff --git a/third_party/WebKit/Source/web/DevToolsEmulator.cpp b/third_party/WebKit/Source/web/DevToolsEmulator.cpp
index bdf02329725645f88ae76bcdf9d2dccc50ff89b3..6d05aa8712590c754a5c35d354f7bba311709900 100644
--- a/third_party/WebKit/Source/web/DevToolsEmulator.cpp
+++ b/third_party/WebKit/Source/web/DevToolsEmulator.cpp
@@ -51,6 +51,7 @@
     , m_deviceMetricsEnabled(false)
     , m_emulateMobileEnabled(false)
     , m_isOverlayScrollbarsEnabled(false)
+    , m_isOrientationEventEnabled(false)
     , m_originalDefaultMinimumPageScaleFactor(0)
     , m_originalDefaultMaximumPageScaleFactor(0)
     , m_embedderTextAutosizingEnabled(webViewImpl->page()->settings().textAutosizingEnabled())
@@ -255,6 +256,8 @@
     m_emulateMobileEnabled = true;
     m_isOverlayScrollbarsEnabled = RuntimeEnabledFeatures::overlayScrollbarsEnabled();
     RuntimeEnabledFeatures::setOverlayScrollbarsEnabled(true);
+    m_isOrientationEventEnabled = RuntimeEnabledFeatures::orientationEventEnabled();
+    RuntimeEnabledFeatures::setOrientationEventEnabled(true);
     m_webViewImpl->page()->settings().setUseMobileViewportStyle(true);
     m_webViewImpl->enableViewport();
     m_webViewImpl->settings()->setViewportMetaEnabled(true);
@@ -284,6 +287,7 @@
     if (!m_emulateMobileEnabled)
         return;
     RuntimeEnabledFeatures::setOverlayScrollbarsEnabled(m_isOverlayScrollbarsEnabled);
+    RuntimeEnabledFeatures::setOrientationEventEnabled(m_isOrientationEventEnabled);
     m_webViewImpl->disableViewport();
     m_webViewImpl->settings()->setViewportMetaEnabled(false);
     m_webViewImpl->page()->frameHost().visualViewport().initializeScrollbars();