Remove dead WebCompositorInputHandler related code

android_webview/renderer/aw_render_view_ext.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 "android_webview/renderer/aw_render_view_ext.h"
 
 #include <string>
 
 #include "android_webview/common/aw_hit_test_data.h"
 #include "android_webview/common/render_view_messages.h"
@@ skipping 174 matching lines @@
 void AwRenderViewExt::DidCommitProvisionalLoad(WebKit::WebFrame* frame,
                                                bool is_new_navigation) {
   content::DocumentState* document_state =
       content::DocumentState::FromDataSource(frame->dataSource());
   if (document_state->can_load_local_resources()) {
     WebKit::WebSecurityOrigin origin = frame->document().securityOrigin();
     origin.grantLoadLocalResources();
   }
 }
 
-void AwRenderViewExt::DidActivateCompositor(int input_handler_identifier) {
-  Send(new AwViewHostMsg_DidActivateAcceleratedCompositing(
-           routing_id(), input_handler_identifier));
-}
-
 void AwRenderViewExt::DidCommitCompositorFrame() {
   UpdatePageScaleFactor();
 }
 
 void AwRenderViewExt::UpdatePageScaleFactor() {
   if (page_scale_factor_ != render_view()->GetWebView()->pageScaleFactor()) {
     page_scale_factor_ = render_view()->GetWebView()->pageScaleFactor();
     Send(new AwViewHostMsg_PageScaleFactorChanged(routing_id(),
                                                   page_scale_factor_));
   }
@@ skipping 64 matching lines @@
 }
 
 void AwRenderViewExt::OnSetInitialPageScale(double page_scale_factor) {
   if (!render_view() || !render_view()->GetWebView())
     return;
   render_view()->GetWebView()->setInitialPageScaleOverride(
       page_scale_factor);
 }
 
 }  // namespace android_webview