Remove window/host accessors from WED; IWYU for WTH

content/browser/renderer_host/compositor_resize_lock_aura.cc

Index: content/browser/renderer_host/compositor_resize_lock_aura.cc
diff --git a/content/browser/renderer_host/compositor_resize_lock_aura.cc b/content/browser/renderer_host/compositor_resize_lock_aura.cc
index 0f0b53c4c6173ac8d550f9625062109408287de9..419b7b326b8a192d41a3479b2db0884f9effe50a 100644
--- a/content/browser/renderer_host/compositor_resize_lock_aura.cc
+++ b/content/browser/renderer_host/compositor_resize_lock_aura.cc
@@ -7,25 +7,26 @@
 #include "base/debug/trace_event.h"
 #include "content/public/browser/browser_thread.h"
 #include "ui/aura/window_event_dispatcher.h"
+#include "ui/aura/window_tree_host.h"
 #include "ui/compositor/compositor.h"
 
 namespace content {
 
 CompositorResizeLock::CompositorResizeLock(
-    aura::WindowEventDispatcher* dispatcher,
+    aura::WindowTreeHost* host,
     const gfx::Size new_size,
     bool defer_compositor_lock,
     const base::TimeDelta& timeout)
     : ResizeLock(new_size, defer_compositor_lock),
-      dispatcher_(dispatcher),
+      host_(host),
       weak_ptr_factory_(this),
       cancelled_(false) {
-  DCHECK(dispatcher_);
+  DCHECK(host_);
 
   TRACE_EVENT_ASYNC_BEGIN2("ui", "CompositorResizeLock", this,
                            "width", expected_size().width(),
                            "height", expected_size().height());
-  dispatcher_->HoldPointerMoves();
+  host_->dispatcher()->HoldPointerMoves();
 
   BrowserThread::PostDelayedTask(
       BrowserThread::UI, FROM_HERE,
@@ -52,7 +53,7 @@ void CompositorResizeLock::UnlockCompositor() {
 
 void CompositorResizeLock::LockCompositor() {
   ResizeLock::LockCompositor();
-  compositor_lock_ = dispatcher_->host()->compositor()->GetCompositorLock();
+  compositor_lock_ = host_->compositor()->GetCompositorLock();
 }
 
 void CompositorResizeLock::CancelLock() {
@@ -60,7 +61,7 @@ void CompositorResizeLock::CancelLock() {
     return;
   cancelled_ = true;
   UnlockCompositor();
-  dispatcher_->ReleasePointerMoves();
+  host_->dispatcher()->ReleasePointerMoves();
 }
 
 }  // namespace content