content/browser/frame_host/render_widget_host_view_guest.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "base/bind_helpers.h"
   6 #include "base/command_line.h"
   7 #include "base/logging.h"
   8 #include "base/message_loop/message_loop.h"
   9 #include "content/browser/browser_plugin/browser_plugin_guest.h"
  10 #include "content/browser/frame_host/render_widget_host_view_guest.h"
  11 #include "content/browser/renderer_host/render_view_host_impl.h"
  12 #include "content/common/browser_plugin/browser_plugin_messages.h"
  13 #include "content/common/frame_messages.h"
  14 #include "content/common/gpu/gpu_messages.h"
  15 #include "content/common/input/web_touch_event_traits.h"
  16 #include "content/common/view_messages.h"
  17 #include "content/common/webplugin_geometry.h"
  18 #include "content/public/common/content_switches.h"
  19 #include "skia/ext/platform_canvas.h"
  20 #include "third_party/WebKit/public/platform/WebScreenInfo.h"
  21
  22 #if defined(OS_MACOSX)
  23 #import "content/browser/renderer_host/render_widget_host_view_mac_dictionary_helper.h"
  24 #endif
  25
  26 #if defined(USE_AURA)
  27 #include "content/browser/renderer_host/ui_events_helper.h"
  28 #endif
  29
  30 namespace content {
  31
  32 namespace {
  33
  34 #if defined(USE_AURA)
  35 blink::WebGestureEvent CreateFlingCancelEvent(double time_stamp) {
  36   blink::WebGestureEvent gesture_event;
  37   gesture_event.timeStampSeconds = time_stamp;
  38   gesture_event.type = blink::WebGestureEvent::GestureFlingCancel;
  39   gesture_event.sourceDevice = blink::WebGestureDeviceTouchscreen;
  40   return gesture_event;
  41 }
  42 #endif  // defined(USE_AURA)
  43
  44 }  // namespace
  45
  46 RenderWidgetHostViewGuest::RenderWidgetHostViewGuest(
  47     RenderWidgetHost* widget_host,
  48     BrowserPluginGuest* guest,
  49     base::WeakPtr<RenderWidgetHostViewBase> platform_view)
  50     : RenderWidgetHostViewChildFrame(widget_host),
  51       // |guest| is NULL during test.
  52       guest_(guest ? guest->AsWeakPtr() : base::WeakPtr<BrowserPluginGuest>()),
  53       platform_view_(platform_view) {
  54 #if defined(USE_AURA)
  55   gesture_recognizer_.reset(ui::GestureRecognizer::Create());
  56   gesture_recognizer_->AddGestureEventHelper(this);
  57 #endif  // defined(USE_AURA)
  58 }
  59
  60 RenderWidgetHostViewGuest::~RenderWidgetHostViewGuest() {
  61 #if defined(USE_AURA)
  62   gesture_recognizer_->RemoveGestureEventHelper(this);
  63 #endif  // defined(USE_AURA)
  64 }
  65
  66 bool RenderWidgetHostViewGuest::OnMessageReceivedFromEmbedder(
  67     const IPC::Message& message,
  68     RenderWidgetHostImpl* embedder) {
  69   bool handled = true;
  70   IPC_BEGIN_MESSAGE_MAP_WITH_PARAM(RenderWidgetHostViewGuest, message,
  71                                    embedder)
  72     IPC_MESSAGE_HANDLER(BrowserPluginHostMsg_HandleInputEvent,
  73                         OnHandleInputEvent)
  74     IPC_MESSAGE_UNHANDLED(handled = false)
  75   IPC_END_MESSAGE_MAP()
  76   return handled;
  77 }
  78
  79 void RenderWidgetHostViewGuest::Show() {
  80   // If the WebContents associated with us showed an interstitial page in the
  81   // beginning, the teardown path might call WasShown() while |host_| is in
  82   // the process of destruction. Avoid calling WasShown below in this case.
  83   // TODO(lazyboy): We shouldn't be showing interstitial pages in guests in the
  84   // first place: http://crbug.com/273089.
  85   //
  86   // |guest_| is NULL during test.
  87   if ((guest_ && guest_->is_in_destruction()) || !host_->is_hidden())
  88     return;
  89   // Make sure the size of this view matches the size of the WebContentsView.
  90   // The two sizes may fall out of sync if we switch RenderWidgetHostViews,
  91   // resize, and then switch page, as is the case with interstitial pages.
  92   // NOTE: |guest_| is NULL in unit tests.
  93   if (guest_)
  94     SetSize(guest_->web_contents()->GetViewBounds().size());
  95   host_->WasShown(ui::LatencyInfo());
  96 }
  97
  98 void RenderWidgetHostViewGuest::Hide() {
  99   // |guest_| is NULL during test.
 100   if ((guest_ && guest_->is_in_destruction()) || host_->is_hidden())
 101     return;
 102   host_->WasHidden();
 103 }
 104
 105 void RenderWidgetHostViewGuest::SetSize(const gfx::Size& size) {
 106   size_ = size;
 107   host_->WasResized();
 108 }
 109
 110 void RenderWidgetHostViewGuest::SetBounds(const gfx::Rect& rect) {
 111   SetSize(rect.size());
 112 }
 113
 114 void RenderWidgetHostViewGuest::Focus() {
 115   // InterstitialPageImpl focuses views directly, so we place focus logic here.
 116   // InterstitialPages are not WebContents, and so BrowserPluginGuest does not
 117   // have direct access to the interstitial page's RenderWidgetHost.
 118   if (guest_)
 119     guest_->SetFocus(host_, true, blink::WebFocusTypeNone);
 120 }
 121
 122 bool RenderWidgetHostViewGuest::HasFocus() const {
 123   if (!guest_)
 124     return false;
 125   return guest_->focused();
 126 }
 127
 128 #if defined(USE_AURA)
 129 void RenderWidgetHostViewGuest::ProcessAckedTouchEvent(
 130     const TouchEventWithLatencyInfo& touch, InputEventAckState ack_result) {
 131   // TODO(fsamuel): Currently we will only take this codepath if the guest has
 132   // requested touch events. A better solution is to always forward touchpresses
 133   // to the embedder process to target a BrowserPlugin, and then route all
 134   // subsequent touch points of that touchdown to the appropriate guest until
 135   // that touch point is released.
 136   ScopedVector<ui::TouchEvent> events;
 137   if (!MakeUITouchEventsFromWebTouchEvents(touch, &events, LOCAL_COORDINATES))
 138     return;
 139
 140   ui::EventResult result = (ack_result ==
 141       INPUT_EVENT_ACK_STATE_CONSUMED) ? ui::ER_HANDLED : ui::ER_UNHANDLED;
 142   for (ScopedVector<ui::TouchEvent>::iterator iter = events.begin(),
 143       end = events.end(); iter != end; ++iter)  {
 144     if (!gesture_recognizer_->ProcessTouchEventPreDispatch(*iter, this))
 145       continue;
 146
 147     scoped_ptr<ui::GestureRecognizer::Gestures> gestures;
 148     gestures.reset(gesture_recognizer_->AckTouchEvent(
 149         (*iter)->unique_event_id(), result, this));
 150     ProcessGestures(gestures.get());
 151   }
 152 }
 153 #endif
 154
 155 gfx::Rect RenderWidgetHostViewGuest::GetViewBounds() const {
 156   if (!guest_)
 157     return gfx::Rect();
 158
 159   RenderWidgetHostViewBase* rwhv = GetOwnerRenderWidgetHostView();
 160   gfx::Rect embedder_bounds;
 161   if (rwhv)
 162     embedder_bounds = rwhv->GetViewBounds();
 163   return gfx::Rect(
 164       guest_->GetScreenCoordinates(embedder_bounds.origin()), size_);
 165 }
 166
 167 void RenderWidgetHostViewGuest::RenderProcessGone(
 168     base::TerminationStatus status,
 169     int error_code) {
 170   // The |platform_view_| gets destroyed before we get here if this view
 171   // is for an InterstitialPage.
 172   if (platform_view_)
 173     platform_view_->RenderProcessGone(status, error_code);
 174
 175   // Destroy the guest view instance only, so we don't end up calling
 176   // platform_view_->Destroy().
 177   DestroyGuestView();
 178 }
 179
 180 void RenderWidgetHostViewGuest::Destroy() {
 181   // The RenderWidgetHost's destruction led here, so don't call it.
 182   DestroyGuestView();
 183
 184   if (platform_view_)  // The platform view might have been destroyed already.
 185     platform_view_->Destroy();
 186 }
 187
 188 gfx::Size RenderWidgetHostViewGuest::GetPhysicalBackingSize() const {
 189   return RenderWidgetHostViewBase::GetPhysicalBackingSize();
 190 }
 191
 192 base::string16 RenderWidgetHostViewGuest::GetSelectedText() const {
 193   return platform_view_->GetSelectedText();
 194 }
 195
 196 void RenderWidgetHostViewGuest::SetTooltipText(
 197     const base::string16& tooltip_text) {
 198   if (guest_)
 199     guest_->SetTooltipText(tooltip_text);
 200 }
 201
 202 void RenderWidgetHostViewGuest::OnSwapCompositorFrame(
 203     uint32 output_surface_id,
 204     scoped_ptr<cc::CompositorFrame> frame) {
 205   if (!guest_)
 206     return;
 207
 208   last_scroll_offset_ = frame->metadata.root_scroll_offset;
 209   guest_->SwapCompositorFrame(output_surface_id,
 210                               host_->GetProcess()->GetID(),
 211                               host_->GetRoutingID(),
 212                               frame.Pass());
 213 }
 214
 215 bool RenderWidgetHostViewGuest::OnMessageReceived(const IPC::Message& msg) {
 216   if (!platform_view_) {
 217     // In theory, we can get here if there's a delay between DestroyGuestView()
 218     // being called and when our destructor is invoked.
 219     return false;
 220   }
 221
 222   return platform_view_->OnMessageReceived(msg);
 223 }
 224
 225 void RenderWidgetHostViewGuest::InitAsChild(
 226     gfx::NativeView parent_view) {
 227   platform_view_->InitAsChild(parent_view);
 228 }
 229
 230 void RenderWidgetHostViewGuest::InitAsPopup(
 231     RenderWidgetHostView* parent_host_view, const gfx::Rect& bounds) {
 232   // This should never get called.
 233   NOTREACHED();
 234 }
 235
 236 void RenderWidgetHostViewGuest::InitAsFullscreen(
 237     RenderWidgetHostView* reference_host_view) {
 238   // This should never get called.
 239   NOTREACHED();
 240 }
 241
 242 gfx::NativeView RenderWidgetHostViewGuest::GetNativeView() const {
 243   if (!guest_)
 244     return gfx::NativeView();
 245
 246   RenderWidgetHostView* rwhv = guest_->GetOwnerRenderWidgetHostView();
 247   if (!rwhv)
 248     return gfx::NativeView();
 249   return rwhv->GetNativeView();
 250 }
 251
 252 gfx::NativeViewId RenderWidgetHostViewGuest::GetNativeViewId() const {
 253   if (!guest_)
 254     return static_cast<gfx::NativeViewId>(NULL);
 255
 256   RenderWidgetHostView* rwhv = guest_->GetOwnerRenderWidgetHostView();
 257   if (!rwhv)
 258     return static_cast<gfx::NativeViewId>(NULL);
 259   return rwhv->GetNativeViewId();
 260 }
 261
 262 gfx::NativeViewAccessible RenderWidgetHostViewGuest::GetNativeViewAccessible() {
 263   if (!guest_)
 264     return gfx::NativeViewAccessible();
 265
 266   RenderWidgetHostView* rwhv = guest_->GetOwnerRenderWidgetHostView();
 267   if (!rwhv)
 268     return gfx::NativeViewAccessible();
 269   return rwhv->GetNativeViewAccessible();
 270 }
 271
 272 void RenderWidgetHostViewGuest::MovePluginWindows(
 273     const std::vector<WebPluginGeometry>& moves) {
 274   platform_view_->MovePluginWindows(moves);
 275 }
 276
 277 void RenderWidgetHostViewGuest::UpdateCursor(const WebCursor& cursor) {
 278   // InterstitialPages are not WebContents so we cannot intercept
 279   // ViewHostMsg_SetCursor for interstitial pages in BrowserPluginGuest.
 280   // All guest RenderViewHosts have RenderWidgetHostViewGuests however,
 281   // and so we will always hit this code path.
 282   if (!guest_)
 283     return;
 284   guest_->SendMessageToEmbedder(
 285       new BrowserPluginMsg_SetCursor(guest_->browser_plugin_instance_id(),
 286                                      cursor));
 287
 288 }
 289
 290 void RenderWidgetHostViewGuest::SetIsLoading(bool is_loading) {
 291   platform_view_->SetIsLoading(is_loading);
 292 }
 293
 294 void RenderWidgetHostViewGuest::TextInputTypeChanged(
 295     ui::TextInputType type,
 296     ui::TextInputMode input_mode,
 297     bool can_compose_inline,
 298     int flags) {
 299   if (!guest_)
 300     return;
 301
 302   RenderWidgetHostViewBase* rwhv = GetOwnerRenderWidgetHostView();
 303   if (!rwhv)
 304     return;
 305   // Forward the information to embedding RWHV.
 306   rwhv->TextInputTypeChanged(type, input_mode, can_compose_inline, flags);
 307 }
 308
 309 void RenderWidgetHostViewGuest::ImeCancelComposition() {
 310   if (!guest_)
 311     return;
 312
 313   RenderWidgetHostViewBase* rwhv = GetOwnerRenderWidgetHostView();
 314   if (!rwhv)
 315     return;
 316   // Forward the information to embedding RWHV.
 317   rwhv->ImeCancelComposition();
 318 }
 319
 320 #if defined(OS_MACOSX) || defined(USE_AURA)
 321 void RenderWidgetHostViewGuest::ImeCompositionRangeChanged(
 322     const gfx::Range& range,
 323     const std::vector<gfx::Rect>& character_bounds) {
 324   if (!guest_)
 325     return;
 326
 327   RenderWidgetHostViewBase* rwhv = GetOwnerRenderWidgetHostView();
 328   if (!rwhv)
 329     return;
 330   std::vector<gfx::Rect> guest_character_bounds;
 331   for (size_t i = 0; i < character_bounds.size(); ++i) {
 332     guest_character_bounds.push_back(gfx::Rect(
 333         guest_->GetScreenCoordinates(character_bounds[i].origin()),
 334         character_bounds[i].size()));
 335   }
 336   // Forward the information to embedding RWHV.
 337   rwhv->ImeCompositionRangeChanged(range, guest_character_bounds);
 338 }
 339 #endif
 340
 341 void RenderWidgetHostViewGuest::SelectionChanged(const base::string16& text,
 342                                                  size_t offset,
 343                                                  const gfx::Range& range) {
 344   platform_view_->SelectionChanged(text, offset, range);
 345 }
 346
 347 void RenderWidgetHostViewGuest::SelectionBoundsChanged(
 348     const ViewHostMsg_SelectionBounds_Params& params) {
 349   if (!guest_)
 350     return;
 351
 352   RenderWidgetHostViewBase* rwhv = GetOwnerRenderWidgetHostView();
 353   if (!rwhv)
 354     return;
 355   ViewHostMsg_SelectionBounds_Params guest_params(params);
 356   guest_params.anchor_rect.set_origin(
 357       guest_->GetScreenCoordinates(params.anchor_rect.origin()));
 358   guest_params.focus_rect.set_origin(
 359       guest_->GetScreenCoordinates(params.focus_rect.origin()));
 360   rwhv->SelectionBoundsChanged(guest_params);
 361 }
 362
 363 void RenderWidgetHostViewGuest::SetBackgroundColor(SkColor color) {
 364   // Content embedders can toggle opaque backgrounds through this API.
 365   // We plumb the value here so that BrowserPlugin updates its compositing
 366   // state in response to this change. We also want to preserve this flag
 367   // after recovering from a crash so we let BrowserPluginGuest store it.
 368   if (!guest_)
 369     return;
 370   RenderWidgetHostViewBase::SetBackgroundColor(color);
 371   bool opaque = GetBackgroundOpaque();
 372   host_->SetBackgroundOpaque(opaque);
 373   guest_->SetContentsOpaque(opaque);
 374 }
 375
 376 bool RenderWidgetHostViewGuest::LockMouse() {
 377   return platform_view_->LockMouse();
 378 }
 379
 380 void RenderWidgetHostViewGuest::UnlockMouse() {
 381   return platform_view_->UnlockMouse();
 382 }
 383
 384 void RenderWidgetHostViewGuest::GetScreenInfo(blink::WebScreenInfo* results) {
 385   if (!guest_)
 386     return;
 387   RenderWidgetHostViewBase* embedder_view = GetOwnerRenderWidgetHostView();
 388   if (embedder_view)
 389     embedder_view->GetScreenInfo(results);
 390 }
 391
 392 uint32_t RenderWidgetHostViewGuest::GetSurfaceIdNamespace() {
 393   // Compositing surfaces not supported.
 394   return 0;
 395 }
 396
 397 #if defined(OS_MACOSX)
 398 void RenderWidgetHostViewGuest::SetActive(bool active) {
 399   platform_view_->SetActive(active);
 400 }
 401
 402 void RenderWidgetHostViewGuest::SetWindowVisibility(bool visible) {
 403   platform_view_->SetWindowVisibility(visible);
 404 }
 405
 406 void RenderWidgetHostViewGuest::WindowFrameChanged() {
 407   platform_view_->WindowFrameChanged();
 408 }
 409
 410 void RenderWidgetHostViewGuest::ShowDefinitionForSelection() {
 411   if (!guest_)
 412     return;
 413
 414   gfx::Point origin;
 415   gfx::Rect guest_bounds = GetViewBounds();
 416   RenderWidgetHostView* rwhv = guest_->GetOwnerRenderWidgetHostView();
 417   gfx::Rect embedder_bounds;
 418   if (rwhv)
 419     embedder_bounds = rwhv->GetViewBounds();
 420
 421   gfx::Vector2d guest_offset = gfx::Vector2d(
 422       // Horizontal offset of guest from embedder.
 423       guest_bounds.x() - embedder_bounds.x(),
 424       // Vertical offset from guest's top to embedder's bottom edge.
 425       embedder_bounds.bottom() - guest_bounds.y());
 426
 427   RenderWidgetHostViewMacDictionaryHelper helper(platform_view_.get());
 428   helper.SetTargetView(rwhv);
 429   helper.set_offset(guest_offset);
 430   helper.ShowDefinitionForSelection();
 431 }
 432
 433 bool RenderWidgetHostViewGuest::SupportsSpeech() const {
 434   return platform_view_->SupportsSpeech();
 435 }
 436
 437 void RenderWidgetHostViewGuest::SpeakSelection() {
 438   platform_view_->SpeakSelection();
 439 }
 440
 441 bool RenderWidgetHostViewGuest::IsSpeaking() const {
 442   return platform_view_->IsSpeaking();
 443 }
 444
 445 void RenderWidgetHostViewGuest::StopSpeaking() {
 446   platform_view_->StopSpeaking();
 447 }
 448
 449 bool RenderWidgetHostViewGuest::PostProcessEventForPluginIme(
 450     const NativeWebKeyboardEvent& event) {
 451   return false;
 452 }
 453
 454 #endif  // defined(OS_MACOSX)
 455
 456 #if defined(OS_ANDROID) || defined(TOOLKIT_VIEWS)
 457 void RenderWidgetHostViewGuest::ShowDisambiguationPopup(
 458     const gfx::Rect& rect_pixels,
 459     const SkBitmap& zoomed_bitmap) {
 460 }
 461 #endif  // defined(OS_ANDROID) || defined(TOOLKIT_VIEWS)
 462
 463 #if defined(OS_ANDROID)
 464 void RenderWidgetHostViewGuest::LockCompositingSurface() {
 465 }
 466
 467 void RenderWidgetHostViewGuest::UnlockCompositingSurface() {
 468 }
 469 #endif  // defined(OS_ANDROID)
 470
 471 #if defined(OS_WIN)
 472 void RenderWidgetHostViewGuest::SetParentNativeViewAccessible(
 473     gfx::NativeViewAccessible accessible_parent) {
 474 }
 475
 476 gfx::NativeViewId RenderWidgetHostViewGuest::GetParentForWindowlessPlugin()
 477     const {
 478   return NULL;
 479 }
 480 #endif
 481
 482 void RenderWidgetHostViewGuest::DestroyGuestView() {
 483   host_->SetView(NULL);
 484   host_ = NULL;
 485   base::MessageLoop::current()->DeleteSoon(FROM_HERE, this);
 486 }
 487
 488 bool RenderWidgetHostViewGuest::CanDispatchToConsumer(
 489     ui::GestureConsumer* consumer) {
 490   CHECK_EQ(static_cast<RenderWidgetHostViewGuest*>(consumer), this);
 491   return true;
 492 }
 493
 494 void RenderWidgetHostViewGuest::DispatchGestureEvent(
 495     ui::GestureEvent* event) {
 496   ForwardGestureEventToRenderer(event);
 497 }
 498
 499 void RenderWidgetHostViewGuest::DispatchCancelTouchEvent(
 500     ui::TouchEvent* event) {
 501   if (!host_)
 502     return;
 503
 504   blink::WebTouchEvent cancel_event;
 505   // TODO(rbyers): This event has no touches in it.  Don't we need to know what
 506   // touches are currently active in order to cancel them all properly?
 507   WebTouchEventTraits::ResetType(blink::WebInputEvent::TouchCancel,
 508                                  event->time_stamp().InSecondsF(),
 509                                  &cancel_event);
 510
 511   host_->ForwardTouchEventWithLatencyInfo(cancel_event, *event->latency());
 512 }
 513
 514 bool RenderWidgetHostViewGuest::ForwardGestureEventToRenderer(
 515     ui::GestureEvent* gesture) {
 516 #if defined(USE_AURA)
 517   if (!host_)
 518     return false;
 519
 520   if ((gesture->type() == ui::ET_GESTURE_PINCH_BEGIN ||
 521       gesture->type() == ui::ET_GESTURE_PINCH_UPDATE ||
 522       gesture->type() == ui::ET_GESTURE_PINCH_END) && !pinch_zoom_enabled_) {
 523     return true;
 524   }
 525
 526   blink::WebGestureEvent web_gesture =
 527       MakeWebGestureEventFromUIEvent(*gesture);
 528   const gfx::Point& client_point = gesture->location();
 529   const gfx::Point& screen_point = gesture->location();
 530
 531   web_gesture.x = client_point.x();
 532   web_gesture.y = client_point.y();
 533   web_gesture.globalX = screen_point.x();
 534   web_gesture.globalY = screen_point.y();
 535
 536   if (web_gesture.type == blink::WebGestureEvent::Undefined)
 537     return false;
 538   if (web_gesture.type == blink::WebGestureEvent::GestureTapDown) {
 539     host_->ForwardGestureEvent(
 540         CreateFlingCancelEvent(gesture->time_stamp().InSecondsF()));
 541   }
 542   host_->ForwardGestureEvent(web_gesture);
 543   return true;
 544 #else
 545   return false;
 546 #endif
 547 }
 548
 549 void RenderWidgetHostViewGuest::ProcessGestures(
 550     ui::GestureRecognizer::Gestures* gestures) {
 551   if ((gestures == NULL) || gestures->empty())
 552     return;
 553   for (ui::GestureRecognizer::Gestures::iterator g_it = gestures->begin();
 554       g_it != gestures->end();
 555       ++g_it) {
 556     ForwardGestureEventToRenderer(*g_it);
 557   }
 558 }
 559
 560 RenderWidgetHostViewBase*
 561 RenderWidgetHostViewGuest::GetOwnerRenderWidgetHostView() const {
 562   return static_cast<RenderWidgetHostViewBase*>(
 563       guest_->GetOwnerRenderWidgetHostView());
 564 }
 565
 566 void RenderWidgetHostViewGuest::OnHandleInputEvent(
 567     RenderWidgetHostImpl* embedder,
 568     int browser_plugin_instance_id,
 569     const gfx::Rect& guest_window_rect,
 570     const blink::WebInputEvent* event) {
 571   if (blink::WebInputEvent::isMouseEventType(event->type)) {
 572     host_->ForwardMouseEvent(
 573         *static_cast<const blink::WebMouseEvent*>(event));
 574     return;
 575   }
 576
 577   if (event->type == blink::WebInputEvent::MouseWheel) {
 578     host_->ForwardWheelEvent(
 579         *static_cast<const blink::WebMouseWheelEvent*>(event));
 580     return;
 581   }
 582
 583   if (blink::WebInputEvent::isKeyboardEventType(event->type)) {
 584     if (!embedder->GetLastKeyboardEvent())
 585       return;
 586     NativeWebKeyboardEvent keyboard_event(*embedder->GetLastKeyboardEvent());
 587     host_->ForwardKeyboardEvent(keyboard_event);
 588     return;
 589   }
 590
 591   if (blink::WebInputEvent::isTouchEventType(event->type)) {
 592     host_->ForwardTouchEventWithLatencyInfo(
 593         *static_cast<const blink::WebTouchEvent*>(event),
 594         ui::LatencyInfo());
 595     return;
 596   }
 597
 598   if (blink::WebInputEvent::isGestureEventType(event->type)) {
 599     host_->ForwardGestureEvent(
 600         *static_cast<const blink::WebGestureEvent*>(event));
 601     return;
 602   }
 603 }
 604
 605 }  // namespace content