WIP - compositor worker mega patch.

third_party/WebKit/Source/web/WebViewImpl.cpp

Index: third_party/WebKit/Source/web/WebViewImpl.cpp
diff --git a/third_party/WebKit/Source/web/WebViewImpl.cpp b/third_party/WebKit/Source/web/WebViewImpl.cpp
index 704d4cdeb4fc8b6cad73bced9cc75043da3d9c8a..d9155bfc5fcc0308735e8b53ce44420c19d2f8d7 100644
--- a/third_party/WebKit/Source/web/WebViewImpl.cpp
+++ b/third_party/WebKit/Source/web/WebViewImpl.cpp
@@ -34,6 +34,7 @@
 #include "core/HTMLNames.h"
 #include "core/InputTypeNames.h"
 #include "core/clipboard/DataObject.h"
+#include "core/dom/DOMNodeIds.h"
 #include "core/dom/Document.h"
 #include "core/dom/Fullscreen.h"
 #include "core/dom/LayoutTreeBuilderTraversal.h"
@@ -92,6 +93,7 @@
 #include "core/timing/Performance.h"
 #include "modules/accessibility/AXObject.h"
 #include "modules/accessibility/AXObjectCacheImpl.h"
+#include "modules/compositorworker/CompositorWorker.h"
 #include "modules/credentialmanager/CredentialManagerClient.h"
 #include "modules/encryptedmedia/MediaKeysController.h"
 #include "modules/storage/StorageNamespaceController.h"
@@ -111,6 +113,8 @@
 #include "platform/exported/WebActiveGestureAnimation.h"
 #include "platform/fonts/FontCache.h"
 #include "platform/graphics/Color.h"
+#include "platform/graphics/CompositorMutation.h"
+#include "platform/graphics/CompositorMutatorClient.h"
 #include "platform/graphics/FirstPaintInvalidationTracking.h"
 #include "platform/graphics/GraphicsContext.h"
 #include "platform/graphics/Image.h"
@@ -149,6 +153,7 @@
 #include "public/web/WebViewClient.h"
 #include "public/web/WebWindowFeatures.h"
 #include "web/CompositionUnderlineVectorBuilder.h"
+#include "web/CompositorMutatorImpl.h"
 #include "web/ContextFeaturesClientImpl.h"
 #include "web/ContextMenuAllowedScope.h"
 #include "web/DatabaseClientImpl.h"
@@ -4438,6 +4443,19 @@ void WebViewImpl::recordFrameTimingEvent(FrameTimingEventType eventType, int64_t
     }
 }
 
+void WebViewImpl::applyMutations(const WebCompositorMutations& mutations)
+{
+    TRACE_EVENT0("compositor-worker", "WebViewImpl::applyMutations");
+    for (const auto& pair : static_cast<const CompositorMutations&>(mutations).map) {
+        int elementId = pair.first;
+        const CompositorMutation& mutation = pair.second;
+        Node* node = DOMNodeIds::nodeForId(elementId);
+        if (!node || !toElement(node))
+            continue;
+        toElement(node)->updateFromMutation(mutation);
+    }
+}
+
 void WebViewImpl::updateLayerTreeViewport()
 {
     if (!page() || !m_layerTreeView)
@@ -4581,6 +4599,30 @@ void WebViewImpl::forceNextDrawingBufferCreationToFail()
     DrawingBuffer::forceNextDrawingBufferCreationToFail();
 }
 
+CompositorProxyClient* WebViewImpl::createCompositorProxyClient()
+{
+    if (!m_mutator.get()) {
+        m_mutator = CompositorMutatorImpl::create();
+        m_layerTreeView->setMutatorClient(m_mutator->client());
+    }
+    return m_mutator->createCompositorProxyClient();
+}
+
+void WebViewImpl::schedulePostCommitTask(PassOwnPtr<Closure> task)
+{
+    TRACE_EVENT0("compositor-worker", "WebViewImpl::schedulePostCommitTask");
+    m_postCommitTasks.append(task);
+}
+
+void WebViewImpl::didCommit()
+{
+    TRACE_EVENT1("compositor-worker", "WebViewImpl::didCommit", "num_tasks", static_cast<int>(m_postCommitTasks.size()));
+    while (!m_postCommitTasks.isEmpty()) {
+        (*m_postCommitTasks.last())();
+        m_postCommitTasks.removeLast();
+    }
+}
+
 void WebViewImpl::updatePageOverlays()
 {
     if (m_pageColorOverlay)