Expose the capturePicture feature in RenderView for Android WebView legacy API support.

content/renderer/gpu/render_widget_compositor.cc

Index: content/renderer/gpu/render_widget_compositor.cc
diff --git a/content/renderer/gpu/render_widget_compositor.cc b/content/renderer/gpu/render_widget_compositor.cc
index d43ea6bc367d981a266006262ebd5f6d067a50f9..5d58f5244cddae7b9ce7f2721489ff7a25ca412e 100644
--- a/content/renderer/gpu/render_widget_compositor.cc
+++ b/content/renderer/gpu/render_widget_compositor.cc
@@ -358,9 +358,7 @@ void RenderWidgetCompositor::willCommit() {
 }
 
 void RenderWidgetCompositor::didCommit() {
-  // TODO(jamesr): There is no chromium-side implementation of this first call,
-  // remove if it's not needed.
-  widget_->didCommitCompositorFrame();
+  widget_->DidCommitCompositorFrame();
   widget_->didBecomeReadyForAdditionalInput();
 }