Tiling priorities in Android Webview.

android_webview/browser/shared_renderer_state.cc

 // Copyright 2014 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/browser/shared_renderer_state.h"
 
 #include "android_webview/browser/browser_view_renderer_client.h"
 #include "base/bind.h"
 #include "base/location.h"
 
@@ skipping 33 matching lines @@
   }
 }
 
 void SharedRendererState::ClientRequestDrawGLOnUIThread() {
   DCHECK(ui_loop_->BelongsToCurrentThread());
   if (!client_on_ui_->RequestDrawGL(NULL, false)) {
     LOG(ERROR) << "Failed to request GL process. Deadlock likely";
   }
 }
 
+void SharedRendererState::UpdateParentDrawConstraintsOnUIThread() {
+  DCHECK(ui_loop_->BelongsToCurrentThread());
+  client_on_ui_->UpdateParentDrawConstraints();
+}
+
 void SharedRendererState::SetDrawGLInput(scoped_ptr<DrawGLInput> input) {
   base::AutoLock lock(lock_);
   DCHECK(!draw_gl_input_.get());
   draw_gl_input_ = input.Pass();
 }
 
 scoped_ptr<DrawGLInput> SharedRendererState::PassDrawGLInput() {
   base::AutoLock lock(lock_);
   return draw_gl_input_.Pass();
 }
 
+void SharedRendererState::PostExternalDrawConstraintsToChildCompositor(
+    const ParentCompositorDrawConstraints& parent_draw_constraints) {
+  {
+    base::AutoLock lock(lock_);
+    parent_draw_constraints_ = parent_draw_constraints;
+  }
+
+  // No need to hold the lock_ during the post task.
+  ui_loop_->PostTask(
+      FROM_HERE,
+      base::Bind(&SharedRendererState::UpdateParentDrawConstraintsOnUIThread,
+                 ui_thread_weak_ptr_));
+}
+
+const ParentCompositorDrawConstraints
+SharedRendererState::ParentDrawConstraints() const {
+  base::AutoLock lock(lock_);
+  return parent_draw_constraints_;
+}
+
 void SharedRendererState::SetInsideHardwareRelease(bool inside) {
   base::AutoLock lock(lock_);
   inside_hardware_release_ = inside;
 }
 
 bool SharedRendererState::IsInsideHardwareRelease() const {
   base::AutoLock lock(lock_);
   return inside_hardware_release_;
 }
 
@@ skipping 33 matching lines @@
     : shared_renderer_state_(shared_renderer_state) {
   DCHECK(!shared_renderer_state_->IsInsideHardwareRelease());
   shared_renderer_state_->SetInsideHardwareRelease(true);
 }
 
 InsideHardwareReleaseReset::~InsideHardwareReleaseReset() {
   shared_renderer_state_->SetInsideHardwareRelease(false);
 }
 
 }  // namespace android_webview