Implement overscroll support for the virtual keyboard.

content/browser/renderer_host/render_widget_host_view_aura_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 "content/browser/renderer_host/render_widget_host_view_aura.h"
 
 #include "base/basictypes.h"
+#include "base/command_line.h"
 #include "base/memory/shared_memory.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "base/strings/utf_string_conversions.h"
 #include "cc/output/compositor_frame.h"
 #include "cc/output/compositor_frame_metadata.h"
 #include "cc/output/copy_output_request.h"
 #include "content/browser/browser_thread_impl.h"
 #include "content/browser/compositor/resize_lock.h"
 #include "content/browser/renderer_host/render_widget_host_delegate.h"
@@ skipping 1319 matching lines @@
                              scoped_ptr<cc::SingleReleaseCallback>());
 
   // Because the copy request callback may be holding state within it, that
   // state must handle the RWHVA and ImageTransportFactory going away before the
   // callback is called. This test passes if it does not crash as a result of
   // these things being destroyed.
   EXPECT_EQ(2, callback_count_);
   EXPECT_FALSE(result_);
 }
 
+TEST_F(RenderWidgetHostViewAuraTest, VisibleViewportTest) {
+  gfx::Rect view_rect(100, 100);
+
+  view_->InitAsChild(NULL);
+  aura::client::ParentWindowWithContext(
+      view_->GetNativeView(),
+      parent_view_->GetNativeView()->GetRootWindow(),
+      gfx::Rect());
+  view_->SetSize(view_rect.size());
+  view_->WasShown();
+
+  // Defaults to full height of the view.
+  EXPECT_EQ(100, view_->GetVisibleViewportHeight());
+
+  widget_host_->ResetSizeAndRepaintPendingFlags();
+  sink_->ClearMessages();
+  view_->SetKeyboardBounds(gfx::Rect(0, 60, 100, 100));
+
+  EXPECT_EQ(60, view_->GetVisibleViewportHeight());
+
+  const IPC::Message *message = sink_->GetFirstMessageMatching(
+      ViewMsg_Resize::ID);
+  ASSERT_TRUE(message != NULL);
+
+  ViewMsg_Resize::Param params;
+  ViewMsg_Resize::Read(message, &params);
+  EXPECT_EQ(60, params.a.visible_viewport_height);
+}
+
 }  // namespace content