Global GPU memory manager for android webview

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 980 matching lines @@
                                      jobject obj,
                                      jboolean network_up) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   render_view_host_ext_->SetJsOnlineProperty(network_up);
 }
 
 void AwContents::TrimMemoryOnRenderThread(JNIEnv* env,
                                           jobject obj,
                                           jint level,
                                           jboolean visible) {
-  if (hardware_renderer_) {
-    if (hardware_renderer_->TrimMemory(level, visible)) {
-      content::BrowserThread::PostTask(
-          content::BrowserThread::UI,
-          FROM_HERE,
-          base::Bind(&AwContents::ForceFakeComposite, ui_thread_weak_ptr_));
-    }
-  }
+  BrowserThread::PostTask(
+      BrowserThread::UI,
+      FROM_HERE,
+      base::Bind(&AwContents::TrimMemory, ui_thread_weak_ptr_, level, visible));

[boliu, 2014/05/01 00:37:40]

You don't need this trip to RT, change AwContents.java to not run
executeHardwareAction, and directly call TrimMemory below and into BVR. It
should all just work...

[hush (inactive), 2014/05/01 19:03:04]

I will rebase onto your change here:
https://codereview.chromium.org/255023004/

I removed TrimMemoryOnRenderThread
On 2014/05/01 00:37:40, boliu wrote:

 }
 
-void AwContents::ForceFakeComposite() {
-  browser_view_renderer_.ForceFakeCompositeSW();
+void AwContents::TrimMemory(const int level, const bool visible) {
+  browser_view_renderer_.TrimMemory(level, visible);
 }
 
 void SetShouldDownloadFavicons(JNIEnv* env, jclass jclazz) {
   g_should_download_favicons = true;
 }
 
 }  // namespace android_webview