Enable texture readback support for Android

content/browser/android/content_view_core_impl.cc

 // Copyright (c) 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 "content/browser/android/content_view_core_impl.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_array.h"
 #include "base/android/jni_string.h"
 #include "base/android/scoped_java_ref.h"
 #include "base/json/json_writer.h"
 #include "base/logging.h"
 #include "base/utf_string_conversions.h"
 #include "content/browser/android/load_url_params.h"
 #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"
 #include "content/browser/ssl/ssl_host_state.h"
 #include "content/browser/web_contents/navigation_controller_impl.h"
 #include "content/browser/web_contents/navigation_entry_impl.h"
 #include "content/browser/web_contents/web_contents_view_android.h"
 #include "content/common/android/device_info.h"
 #include "content/common/view_messages.h"
 #include "content/public/browser/browser_context.h"
@@ skipping 408 matching lines @@
 
 void ContentViewCoreImpl::ShowPastePopup(int x, int y) {
   JNIEnv* env = AttachCurrentThread();
   ScopedJavaLocalRef<jobject> obj = java_ref_.get(env);
   if (obj.is_null())
     return;
   Java_ContentViewCore_showPastePopup(env, obj.obj(), static_cast<jint>(x),
                                       static_cast<jint>(y));
 }
 
+unsigned int ContentViewCoreImpl::GetScaledContentTexture(
+    const gfx::Size& size) {
+  if (!CompositorImpl::IsInitialized())

[no sievers, 2012/10/20 00:42:36]

Can you move this check to RWHVA? Same below.

[David Trainor- moved to gerrit, 2012/10/22 17:56:16]

Done.

+    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);
   if (j_obj.is_null())
     return;
   ScopedJavaLocalRef<jstring> jcontent_url =
       ConvertUTF8ToJavaString(env, content_url.spec());
   Java_ContentViewCore_startContentIntent(env,
                                           j_obj.obj(),
                                           jcontent_url.obj());
@@ skipping 414 matching lines @@
     return;
 
   RenderWidgetHostImpl* host = RenderWidgetHostImpl::From(
       view->GetRenderWidgetHost());
 
   host->UpdateVSyncParameters(
       base::TimeTicks::FromInternalValue(timebase_micros),
       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();
   host->Send(new ViewMsg_ScrollFocusedEditableNodeIntoRect(host->GetRoutingID(),
                                                            gfx::Rect()));
 }
 
 int ContentViewCoreImpl::GetNavigationHistory(JNIEnv* env,
                                               jobject obj,
                                               jobject context) {
@@ skipping 146 matching lines @@
   if (!HasField(env, clazz, "mNativeContentViewCore", "I")) {
     DLOG(ERROR) << "Unable to find ContentView.mNativeContentViewCore!";
     return false;
   }
   g_native_content_view = GetFieldID(env, clazz, "mNativeContentViewCore", "I");
 
   return RegisterNativesImpl(env) >= 0;
 }
 
 }  // namespace content