cc: Make scheduling be driven by vsync 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 47 matching lines @@
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/common/renderer_preferences.h"
 #include "content/public/common/ssl_status.h"
 #include "jni/AwContents_jni.h"
 #include "net/base/auth.h"
 #include "net/cert/x509_certificate.h"
 #include "third_party/skia/include/core/SkPicture.h"
+#include "ui/base/android/window_android.h"
 #include "ui/gfx/android/java_bitmap.h"
 #include "ui/gfx/geometry/rect_f.h"
 #include "ui/gfx/image/image.h"
 #include "ui/gfx/size.h"
 
 struct AwDrawSWFunctionTable;
 
 using autofill::ContentAutofillDriverFactory;
 using autofill::AutofillManager;
 using base::android::AttachCurrentThread;
@@ skipping 114 matching lines @@
       new AwRenderViewHostExt(this, web_contents_.get()));
 
   permission_request_handler_.reset(
       new PermissionRequestHandler(this, web_contents_.get()));
 
   AwAutofillClient* autofill_manager_delegate =
       AwAutofillClient::FromWebContents(web_contents_.get());
   InitDataReductionProxyIfNecessary();
   if (autofill_manager_delegate)
     InitAutofillIfNecessary(autofill_manager_delegate->GetSaveFormData());
+  ContentViewCore* cvc =
+      ContentViewCore::FromWebContents(web_contents_.get());
+  if (cvc) cvc->GetWindowAndroid()->AddObserver(this);
   content::SynchronousCompositor::SetClientForWebContents(
       web_contents_.get(), &browser_view_renderer_);
 }
 
 void AwContents::SetJavaPeers(JNIEnv* env,
                               jobject obj,
                               jobject aw_contents,
                               jobject web_contents_delegate,
                               jobject contents_client_bridge,
                               jobject io_thread_client,
@@ skipping 63 matching lines @@
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   JNIEnv* env = AttachCurrentThread();
   ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
   if (obj.is_null())
     return;
   Java_AwContents_setAwAutofillClient(env, obj.obj(), client);
 }
 
 AwContents::~AwContents() {
   DCHECK_EQ(this, AwContents::FromWebContents(web_contents_.get()));
+  ContentViewCore* cvc =
+      ContentViewCore::FromWebContents(web_contents_.get());
+  if (cvc) cvc->GetWindowAndroid()->RemoveObserver(this);
   content::SynchronousCompositor::SetClientForWebContents(web_contents_.get(),
                                                           NULL);
   web_contents_->RemoveUserData(kAwContentsUserDataKey);
   if (find_helper_.get())
     find_helper_->SetListener(NULL);
   if (icon_helper_.get())
     icon_helper_->SetListener(NULL);
   base::subtle::NoBarrier_AtomicIncrement(&g_instance_count, -1);
   // When the last WebView is destroyed free all discardable memory allocated by
   // Chromium, because the app process may continue to run for a long time
@@ skipping 693 matching lines @@
 void AwContents::DidOverscroll(gfx::Vector2d overscroll_delta) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   JNIEnv* env = AttachCurrentThread();
   ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
   if (obj.is_null())
     return;
   Java_AwContents_didOverscroll(
       env, obj.obj(), overscroll_delta.x(), overscroll_delta.y());
 }
 
+void AwContents::RequestVSyncUpdate() {
+  ContentViewCore* cvc = ContentViewCore::FromWebContents(web_contents_.get());
+  if (cvc) cvc->GetWindowAndroid()->RequestVSyncUpdate();
+}
+
 const BrowserViewRenderer* AwContents::GetBrowserViewRenderer() const {
   return &browser_view_renderer_;
 }
 
+void AwContents::OnVSync(base::TimeTicks frame_time, 
+    base::TimeDelta vsync_period) {
+  browser_view_renderer_.OnVSync(frame_time, vsync_period);
+}
+
 void AwContents::SetDipScale(JNIEnv* env, jobject obj, jfloat dip_scale) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   browser_view_renderer_.SetDipScale(dip_scale);
 }
 
 void AwContents::ScrollTo(JNIEnv* env, jobject obj, jint x, jint y) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   browser_view_renderer_.ScrollTo(gfx::Vector2d(x, y));
 }
 
@@ skipping 113 matching lines @@
                  base::Owned(port1),
                  base::Owned(port2)));
 }
 
 
 void SetShouldDownloadFavicons(JNIEnv* env, jclass jclazz) {
   g_should_download_favicons = true;
 }
 
 }  // namespace android_webview