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

components/test_runner/mock_screen_orientation_client.cc

Index: components/test_runner/mock_screen_orientation_client.cc
diff --git a/components/test_runner/mock_screen_orientation_client.cc b/components/test_runner/mock_screen_orientation_client.cc
index 80a1dbf013128a1debadc8945f768fdf50cd2318..7fe803debb269e33f76026a40a8fac3d48b8b0f4 100644
--- a/components/test_runner/mock_screen_orientation_client.cc
+++ b/components/test_runner/mock_screen_orientation_client.cc
@@ -15,7 +15,8 @@
     : main_frame_(NULL),
       current_lock_(blink::WebScreenOrientationLockDefault),
       device_orientation_(blink::WebScreenOrientationPortraitPrimary),
-      current_orientation_(blink::WebScreenOrientationPortraitPrimary) {
+      current_orientation_(blink::WebScreenOrientationPortraitPrimary),
+      is_active_(false) {
 }
 
 MockScreenOrientationClient::~MockScreenOrientationClient() {
@@ -25,12 +26,14 @@
   current_lock_ = blink::WebScreenOrientationLockDefault;
   device_orientation_ = blink::WebScreenOrientationPortraitPrimary;
   current_orientation_ = blink::WebScreenOrientationPortraitPrimary;
+  is_active_ = true;
 }
 
 void MockScreenOrientationClient::UpdateDeviceOrientation(
     blink::WebLocalFrame* main_frame,
     blink::WebScreenOrientationType orientation) {
   main_frame_ = main_frame;
+  is_active_ = true;
   if (device_orientation_ == orientation)
     return;
   device_orientation_ = orientation;