OOPIF: Route keyboard events to focused frame in the browser process.

content/browser/renderer_host/render_widget_host_view_android.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_android.h"
 
 #include <android/bitmap.h>
 
 #include "base/android/build_info.h"
 #include "base/basictypes.h"
@@ skipping 1659 matching lines @@
 }
 
 void RenderWidgetHostViewAndroid::UnlockMouse() {
   NOTIMPLEMENTED();
 }
 
 // Methods called from the host to the render
 
 void RenderWidgetHostViewAndroid::SendKeyEvent(
     const NativeWebKeyboardEvent& event) {
-  if (host_)
-    host_->ForwardKeyboardEvent(event);
+  if (host_) {

[kenrb, 2015/10/28 21:07:05]

It's cleaner to invert this into an early return
if (!host_)
  return;

[alexmos, 2015/10/29 05:26:29]

Done.

+    RenderWidgetHostImpl* target_host = host_;
+
+    // If there are multiple widgets on the page (such as when there are
+    // out-of-process iframes), pick the one that should process this event.
+    if (host_->delegate()) {
+      RenderWidgetHostImpl* focused_host =
+          host_->delegate()->GetFocusedRenderWidgetHost();
+      if (focused_host)
+        target_host = focused_host;
+    }
+
+    target_host->ForwardKeyboardEvent(event);
+  }
 }
 
 void RenderWidgetHostViewAndroid::SendMouseEvent(
     const blink::WebMouseEvent& event) {
   if (host_)
     host_->ForwardMouseEvent(event);
 }
 
 void RenderWidgetHostViewAndroid::SendMouseWheelEvent(
     const blink::WebMouseWheelEvent& event) {
@@ skipping 353 matching lines @@
   results->orientationAngle = display.RotationAsDegree();
   results->orientationType =
       RenderWidgetHostViewBase::GetOrientationTypeForMobile(display);
   gfx::DeviceDisplayInfo info;
   results->depth = info.GetBitsPerPixel();
   results->depthPerComponent = info.GetBitsPerComponent();
   results->isMonochrome = (results->depthPerComponent == 0);
 }
 
 }  // namespace content