Implement overscroll support for the virtual keyboard.

content/browser/renderer_host/render_widget_host_view_aura_unittest.cc

Index: content/browser/renderer_host/render_widget_host_view_aura_unittest.cc
diff --git a/content/browser/renderer_host/render_widget_host_view_aura_unittest.cc b/content/browser/renderer_host/render_widget_host_view_aura_unittest.cc
index 81137d9eeba78ff21a5e049618c72b4acd5282bb..cba0806d680cc79c99f32b6974535c4c9dd65f64 100644
--- a/content/browser/renderer_host/render_widget_host_view_aura_unittest.cc
+++ b/content/browser/renderer_host/render_widget_host_view_aura_unittest.cc
@@ -5,6 +5,7 @@
 #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"
@@ -45,6 +46,8 @@
 #include "ui/compositor/test/in_process_context_factory.h"
 #include "ui/events/event.h"
 #include "ui/events/event_utils.h"
+#include "ui/keyboard/keyboard_switches.h"
+#include "ui/keyboard/keyboard_util.h"
 
 using testing::_;
 
@@ -1344,4 +1347,54 @@ TEST_F(RenderWidgetHostViewAuraCopyRequestTest, DestroyedAfterCopyRequest) {
   EXPECT_FALSE(result_);
 }
 
+#if defined(OS_CHROMEOS)
+
+class RenderWidgetHostViewAuraKeyboardTest
+    : public RenderWidgetHostViewAuraTest {
+ public:
+  RenderWidgetHostViewAuraKeyboardTest() {}
+
+  virtual void SetUp() OVERRIDE {
+    CommandLine* command_line = CommandLine::ForCurrentProcess();
+    command_line->AppendSwitch(
+        keyboard::switches::kEnableVirtualKeyboard);
+    command_line->AppendSwitch(
+        keyboard::switches::kEnableVirtualKeyboardOverscroll);
+    RenderWidgetHostViewAuraTest::SetUp();
+  }
+};
+
+TEST_F(RenderWidgetHostViewAuraKeyboardTest, OverscrollTest) {
+  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();
+
+  EXPECT_TRUE(keyboard::IsKeyboardOverscrollEnabled());
+  EXPECT_EQ("0,0 0x0", view_->virtual_keyboard_bounds_.ToString());
+
+  widget_host_->ResetSizeAndRepaintPendingFlags();
+  sink_->ClearMessages();
+  gfx::Rect keyboard_rect(0, 50, 100, 50);
+  view_->OnKeyboardBoundsChanging(keyboard_rect);
+
+  EXPECT_EQ("0,50 100x50", view_->virtual_keyboard_bounds_.ToString());
+  EXPECT_EQ(50, view_->GetOverdrawBottomHeight());
+
+  const IPC::Message *message = sink_->GetFirstMessageMatching(
+      ViewMsg_Resize::ID);
+  ASSERT_TRUE(message != NULL);
+
+  ViewMsg_Resize::Param params;
+  ViewMsg_Resize::Read(message, &params);
+  EXPECT_EQ(50, params.a.overdraw_bottom_height);
+}
+
+#endif  // defined(OS_CHROMEOS)
+
 }  // namespace content