Send resize event when the screen info 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 "base/basictypes.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/shared_memory.h"
 #include "base/timer/timer.h"
@@ skipping 123 matching lines @@
       : RenderWidgetHostImpl(delegate, process, routing_id, false),
         unresponsive_timer_fired_(false) {
     acked_touch_event_type_ = blink::WebInputEvent::Undefined;
   }
 
   // Allow poking at a few private members.
   using RenderWidgetHostImpl::GetResizeParams;
   using RenderWidgetHostImpl::OnUpdateRect;
   using RenderWidgetHostImpl::RendererExited;
   using RenderWidgetHostImpl::SetInitialRenderSizeParams;
+  using RenderWidgetHostImpl::UpdateScreenInfo;
   using RenderWidgetHostImpl::old_resize_params_;
   using RenderWidgetHostImpl::is_hidden_;
   using RenderWidgetHostImpl::resize_ack_pending_;
   using RenderWidgetHostImpl::input_router_;
 
   void OnTouchEventAck(const TouchEventWithLatencyInfo& event,
                        InputEventAckState ack_result) override {
     // Sniff touch acks.
     acked_touch_event_type_ = event.event.type;
     RenderWidgetHostImpl::OnTouchEventAck(event, ack_result);
@@ skipping 285 matching lines @@
     if (IsDelegatedRendererEnabled())
       ImageTransportFactory::Terminate();
 #endif
 
     // Process all pending tasks to avoid leaks.
     base::MessageLoop::current()->RunUntilIdle();
   }
 
   void SetInitialRenderSizeParams() {
     ViewMsg_Resize_Params render_size_params;
+    host_->UpdateScreenInfo();
     host_->GetResizeParams(&render_size_params);
     host_->SetInitialRenderSizeParams(render_size_params);
   }
 
   virtual void ConfigureView(TestView* view) {
   }
 
   int64 GetLatencyComponentId() {
     return host_->GetLatencyComponentId();
   }
@@ skipping 138 matching lines @@
 class RenderWidgetHostWithSourceTest
     : public RenderWidgetHostTest,
       public testing::WithParamInterface<WebGestureDevice> {};
 #endif  // GTEST_HAS_PARAM_TEST
 
 }  // namespace
 
 // -----------------------------------------------------------------------------
 
 TEST_F(RenderWidgetHostTest, Resize) {
-  // The initial bounds is the empty rect, and the screen info hasn't been sent
-  // yet, so setting it to the same thing shouldn't send the resize message.
+  // The initial bounds is the empty rect, so setting it to the same thing
+  // shouldn't send the resize message.
   view_->set_bounds(gfx::Rect());
   host_->WasResized();
   EXPECT_FALSE(host_->resize_ack_pending_);
   EXPECT_FALSE(process_->sink().GetUniqueMessageMatching(ViewMsg_Resize::ID));
 
   // No resize ack if the physical backing gets set, but the view bounds are
   // zero.
   view_->SetMockPhysicalBackingSize(gfx::Size(200, 200));
   host_->WasResized();
   EXPECT_FALSE(host_->resize_ack_pending_);
@@ skipping 93 matching lines @@
   EXPECT_FALSE(process_->sink().GetFirstMessageMatching(ViewMsg_Resize::ID));
 
   // A different size should be sent again, however.
   view_->set_bounds(gfx::Rect(0, 0, 0, 31));
   host_->WasResized();
   EXPECT_FALSE(host_->resize_ack_pending_);
   EXPECT_EQ(gfx::Size(0, 31), host_->old_resize_params_->new_size);
   EXPECT_TRUE(process_->sink().GetUniqueMessageMatching(ViewMsg_Resize::ID));
 }
 
+// Test that a resize event is sent if InvalidateScreenInfo() was called.
+TEST_F(RenderWidgetHostTest, ResizeScreenInfo) {
+  host_->InvalidateScreenInfo();
+  host_->WasResized();
+  EXPECT_FALSE(host_->resize_ack_pending_);
+  EXPECT_TRUE(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();
 
   // Setting the bounds to a "real" rect should send out the notification.
   gfx::Rect original_size(0, 0, 100, 100);
   view_->set_bounds(original_size);
   host_->WasResized();
@@ skipping 761 matching lines @@
   // Having an initial size set means that the size information had been sent
   // with the reqiest to new up the RenderView and so subsequent WasResized
   // calls should not result in new IPC (unless the size has actually changed).
   host_->WasResized();
   EXPECT_FALSE(process_->sink().GetUniqueMessageMatching(ViewMsg_Resize::ID));
   EXPECT_EQ(initial_size_, host_->old_resize_params_->new_size);
   EXPECT_TRUE(host_->resize_ack_pending_);
 }
 
 }  // namespace content