Enable texture readback support for Android

content/browser/android/content_view_core_impl.cc

Index: content/browser/android/content_view_core_impl.cc
diff --git a/content/browser/android/content_view_core_impl.cc b/content/browser/android/content_view_core_impl.cc
index be5f845e5dd450b807dea9528f2e262cbe0789d4..4b709c6787f37a1108278e9e85d76f55e139368c 100644
--- a/content/browser/android/content_view_core_impl.cc
+++ b/content/browser/android/content_view_core_impl.cc
@@ -15,6 +15,7 @@
 #include "content/browser/android/touch_point.h"
 #include "content/browser/renderer_host/java/java_bound_object.h"
 #include "content/browser/renderer_host/java/java_bridge_dispatcher_host_manager.h"
+#include "content/browser/renderer_host/compositor_impl_android.h"
 #include "content/browser/renderer_host/render_view_host_impl.h"
 #include "content/browser/renderer_host/render_widget_host_impl.h"
 #include "content/browser/renderer_host/render_widget_host_view_android.h"
@@ -443,6 +444,18 @@ void ContentViewCoreImpl::ShowPastePopup(int x, int y) {
                                       static_cast<jint>(y));
 }
 
+unsigned int ContentViewCoreImpl::GetScaledContentTexture(
+    const gfx::Size& size) {
+  if (!CompositorImpl::IsInitialized())
+    return 0;
+
+  RenderWidgetHostViewAndroid* view = GetRenderWidgetHostViewAndroid();
+  if (!view)
+    return 0;
+
+  return view->GetScaledContentTexture(size);
+}
+
 void ContentViewCoreImpl::StartContentIntent(const GURL& content_url) {
   JNIEnv* env = AttachCurrentThread();
   ScopedJavaLocalRef<jobject> j_obj = java_ref_.get(env);
@@ -877,6 +890,19 @@ void ContentViewCoreImpl::UpdateVSyncParameters(JNIEnv* env, jobject /* obj */,
       base::TimeDelta::FromMicroseconds(interval_micros));
 }
 
+jboolean ContentViewCoreImpl::PopulateBitmapFromCompositor(JNIEnv* env,
+                                                           jobject obj,
+                                                           jobject jbitmap) {
+  if (!CompositorImpl::IsInitialized())
+    return false;
+
+  RenderWidgetHostViewAndroid* view = GetRenderWidgetHostViewAndroid();
+  if (!view)
+    return false;
+
+  return view->PopulateBitmapWithContents(jbitmap);
+}
+
 void ContentViewCoreImpl::ScrollFocusedEditableNodeIntoView(JNIEnv* env,
                                                             jobject obj) {
   RenderViewHost* host = web_contents_->GetRenderViewHost();