Cross-process frames should be notified of device scale factor changes.

content/browser/renderer_host/render_widget_host_unittest.cc

 // Copyright (c) 2012 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.
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <memory>
 #include <tuple>
 
@@ skipping 258 matching lines @@
   int gesture_event_type() const { return gesture_event_type_; }
   InputEventAckState ack_result() const { return ack_result_; }
 
   void SetMockPhysicalBackingSize(const gfx::Size& mock_physical_backing_size) {
     use_fake_physical_backing_size_ = true;
     mock_physical_backing_size_ = mock_physical_backing_size;
   }
   void ClearMockPhysicalBackingSize() {
     use_fake_physical_backing_size_ = false;
   }
-  void SetScreenInfo(const blink::WebScreenInfo& screen_info) {
-    screen_info_ = screen_info;
-  }
 
   // RenderWidgetHostView override.
   gfx::Rect GetViewBounds() const override { return bounds_; }
   void ProcessAckedTouchEvent(const TouchEventWithLatencyInfo& touch,
                               InputEventAckState ack_result) override {
     acked_event_ = touch.event;
     ++acked_event_count_;
   }
   void WheelEventAck(const WebMouseWheelEvent& event,
                      InputEventAckState ack_result) override {
     if (ack_result == INPUT_EVENT_ACK_STATE_CONSUMED)
       return;
     unhandled_wheel_event_count_++;
     unhandled_wheel_event_ = event;
   }
   void GestureEventAck(const WebGestureEvent& event,
                        InputEventAckState ack_result) override {
     gesture_event_type_ = event.type;
     ack_result_ = ack_result;
   }
   gfx::Size GetPhysicalBackingSize() const override {
     if (use_fake_physical_backing_size_)
       return mock_physical_backing_size_;
     return TestRenderWidgetHostView::GetPhysicalBackingSize();
   }
-  void GetScreenInfo(blink::WebScreenInfo* screen_info) override {
-    *screen_info = screen_info_;
-  }
 #if defined(USE_AURA)
   ~TestView() override {
     // Simulate the mouse exit event dispatched when an aura window is
     // destroyed. (MakeWebMouseEventFromAuraEvent translates ET_MOUSE_EXITED
     // into WebInputEvent::MouseMove.)
     WebMouseEvent event =
         SyntheticWebMouseEventBuilder::Build(WebInputEvent::MouseMove);
     event.timeStampSeconds =
         (base::TimeTicks::Now() - base::TimeTicks()).InSecondsF();
     rwh_->input_router()->SendMouseEvent(
         MouseEventWithLatencyInfo(event, ui::LatencyInfo()));
   }
 #endif
 
  protected:
   WebMouseWheelEvent unhandled_wheel_event_;
   int unhandled_wheel_event_count_;
   WebTouchEvent acked_event_;
   int acked_event_count_;
   int gesture_event_type_;
   gfx::Rect bounds_;
   bool use_fake_physical_backing_size_;
   gfx::Size mock_physical_backing_size_;
   InputEventAckState ack_result_;
-  blink::WebScreenInfo screen_info_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(TestView);
 };
 
 // MockRenderWidgetHostDelegate --------------------------------------------
 
 class MockRenderWidgetHostDelegate : public RenderWidgetHostDelegate {
  public:
   MockRenderWidgetHostDelegate()
@@ skipping 35 matching lines @@
   }
 
   void set_prehandle_keyboard_event_is_shortcut(bool is_shortcut) {
     prehandle_keyboard_event_is_shortcut_ = is_shortcut;
   }
 
   bool handle_wheel_event_called() const { return handle_wheel_event_called_; }
 
   bool unresponsive_timer_fired() const { return unresponsive_timer_fired_; }
 
+  void SetScreenInfo(const blink::WebScreenInfo& screen_info) {
+    screen_info_ = screen_info;
+  }
+
+  // RenderWidgetHostDelegate overrides.
+  void GetScreenInfo(blink::WebScreenInfo* web_screen_info) override {
+    *web_screen_info = screen_info_;
+  }
+
  protected:
   bool PreHandleKeyboardEvent(const NativeWebKeyboardEvent& event,
                               bool* is_keyboard_shortcut) override {
     prehandle_keyboard_event_type_ = event.type;
     prehandle_keyboard_event_called_ = true;
     *is_keyboard_shortcut = prehandle_keyboard_event_is_shortcut_;
     return prehandle_keyboard_event_;
   }
 
   void HandleKeyboardEvent(const NativeWebKeyboardEvent& event) override {
@@ skipping 22 matching lines @@
   bool prehandle_keyboard_event_called_;
   WebInputEvent::Type prehandle_keyboard_event_type_;
 
   bool unhandled_keyboard_event_called_;
   WebInputEvent::Type unhandled_keyboard_event_type_;
 
   bool handle_wheel_event_;
   bool handle_wheel_event_called_;
 
   bool unresponsive_timer_fired_;
+
+  blink::WebScreenInfo screen_info_;
 };
 
 // RenderWidgetHostTest --------------------------------------------------------
 
 class RenderWidgetHostTest : public testing::Test {
  public:
   RenderWidgetHostTest()
       : process_(NULL),
         handle_key_press_event_(false),
         handle_mouse_event_(false),
@@ skipping 335 matching lines @@
 // Test that a resize event is sent if WasResized() is called after a
 // WebScreenInfo change.
 TEST_F(RenderWidgetHostTest, ResizeScreenInfo) {
   blink::WebScreenInfo screen_info;
   screen_info.deviceScaleFactor = 1.f;
   screen_info.rect = blink::WebRect(0, 0, 800, 600);
   screen_info.availableRect = blink::WebRect(0, 0, 800, 600);
   screen_info.orientationAngle = 0;
   screen_info.orientationType = blink::WebScreenOrientationPortraitPrimary;
 
-  view_->SetScreenInfo(screen_info);
+  auto host_delegate =
+      static_cast<MockRenderWidgetHostDelegate*>(host_->delegate());
+
+  host_delegate->SetScreenInfo(screen_info);
   host_->WasResized();
   EXPECT_FALSE(host_->resize_ack_pending_);
   EXPECT_TRUE(process_->sink().GetUniqueMessageMatching(ViewMsg_Resize::ID));
   process_->sink().ClearMessages();
 
   screen_info.orientationAngle = 180;
   screen_info.orientationType = blink::WebScreenOrientationLandscapePrimary;
 
-  view_->SetScreenInfo(screen_info);
+  host_delegate->SetScreenInfo(screen_info);
   host_->WasResized();
   EXPECT_FALSE(host_->resize_ack_pending_);
   EXPECT_TRUE(process_->sink().GetUniqueMessageMatching(ViewMsg_Resize::ID));
   process_->sink().ClearMessages();
 
   screen_info.deviceScaleFactor = 2.f;
 
-  view_->SetScreenInfo(screen_info);
+  host_delegate->SetScreenInfo(screen_info);
   host_->WasResized();
   EXPECT_FALSE(host_->resize_ack_pending_);
   EXPECT_TRUE(process_->sink().GetUniqueMessageMatching(ViewMsg_Resize::ID));
   process_->sink().ClearMessages();
 
   // No screen change.
-  view_->SetScreenInfo(screen_info);
+  host_delegate->SetScreenInfo(screen_info);
   host_->WasResized();
   EXPECT_FALSE(host_->resize_ack_pending_);
   EXPECT_FALSE(process_->sink().GetUniqueMessageMatching(ViewMsg_Resize::ID));
 }
 
 // Test for crbug.com/25097.  If a renderer crashes between a resize and the
 // corresponding update message, we must be sure to clear the resize ack logic.
 TEST_F(RenderWidgetHostTest, ResizeThenCrash) {
   // Clear the first Resize message that carried screen info.
   process_->sink().ClearMessages();
@@ skipping 866 matching lines @@
                                       ui::LatencyInfo());
 
 
   // Tests RWHI::ForwardWheelEventWithLatencyInfo().
   SimulateWheelEventWithLatencyInfo(-5, 0, 0, true, ui::LatencyInfo());
 
   ASSERT_FALSE(host_->input_router()->HasPendingEvents());
 }
 
 }  // namespace content