[Android WebView] OnMemoryPressure to drop tile memory

android_webview/native/aw_contents.cc

 // Copyright 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/native/aw_contents.h"
 
 #include <limits>
 
 #include "android_webview/browser/aw_browser_context.h"
 #include "android_webview/browser/aw_browser_main_parts.h"
@@ skipping 880 matching lines @@
                                     jboolean enabled) {
   browser_view_renderer_->EnableOnNewPicture(enabled);
 }
 
 void AwContents::SetJsOnlineProperty(JNIEnv* env,
                                      jobject obj,
                                      jboolean network_up) {
   render_view_host_ext_->SetJsOnlineProperty(network_up);
 }
 
+void AwContents::TrimMemory(JNIEnv* env, jobject obj, jint level) {
+  browser_view_renderer_->TrimMemory(level);
+}
+
 }  // namespace android_webview