Implemented GetWindowSnapshot on RenderViewImpl

content/browser/renderer_host/render_view_host_impl.cc

Index: content/browser/renderer_host/render_view_host_impl.cc
diff --git a/content/browser/renderer_host/render_view_host_impl.cc b/content/browser/renderer_host/render_view_host_impl.cc
index 007de7fe5862f02dcc13dc4bf4eaf54b82d13fa0..2951048b8ff2e82cc1d9d5f041afadb4be5a97c2 100644
--- a/content/browser/renderer_host/render_view_host_impl.cc
+++ b/content/browser/renderer_host/render_view_host_impl.cc
@@ -63,6 +63,7 @@
 #include "net/url_request/url_request_context_getter.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/base/dialogs/selected_file_info.h"
+#include "ui/base/snapshot/snapshot.h"
 #include "ui/gfx/image/image_skia.h"
 #include "ui/gfx/native_widget_types.h"
 #include "webkit/fileapi/isolated_context.h"
@@ -1027,6 +1028,7 @@ bool RenderViewHostImpl::OnMessageReceived(const IPC::Message& msg) {
     IPC_MESSAGE_HANDLER(ViewHostMsg_ScriptEvalResponse, OnScriptEvalResponse)
     IPC_MESSAGE_HANDLER(ViewHostMsg_DidZoomURL, OnDidZoomURL)
     IPC_MESSAGE_HANDLER(ViewHostMsg_MediaNotification, OnMediaNotification)
+    IPC_MESSAGE_HANDLER(ViewHostMsg_GetWindowSnapshot, OnGetWindowSnapshot)
 #if defined(OS_ANDROID)
     IPC_MESSAGE_HANDLER(ViewHostMsg_StartContentIntent, OnStartContentIntent)
     IPC_MESSAGE_HANDLER(ViewHostMsg_DidChangeBodyBackgroundColor,
@@ -2032,4 +2034,31 @@ void RenderViewHostImpl::ClearPowerSaveBlockers() {
   STLDeleteValues(&power_save_blockers_);
 }
 
+void RenderViewHostImpl::OnGetWindowSnapshot(const int id) {

[Ken Russell (switch to Gerrit), 2012/11/30 22:32:54]

id -> snapshot_id

+  std::vector<unsigned char> png;
+
+  // This feature is behind the kEnableGpuBenchmarking command line switch
+  // because it poses security concerns and should only be used for testing

[Ken Russell (switch to Gerrit), 2012/11/30 22:32:54]

Please add period at end of comment.

+  const CommandLine& command_line = *CommandLine::ForCurrentProcess();
+  if (command_line.HasSwitch(switches::kEnableGpuBenchmarking)) {
+    gfx::Size snapshot_size;
+    gfx::Rect view_bounds = GetView()->GetViewBounds();
+    gfx::Rect snapshot_bounds(
+        0, 0, view_bounds.width(), view_bounds.height());
+
+    snapshot_size.SetSize(snapshot_bounds.width(),
+        snapshot_bounds.height());
+
+    if (ui::GrabViewSnapshot(GetView()->GetNativeView(),
+        &png, snapshot_bounds)) {
+      Send(new ViewMsg_WindowSnapshotCompleted(
+          GetRoutingID(), id, snapshot_size, png));
+      return;
+    }
+  }
+
+  Send(new ViewMsg_WindowSnapshotCompleted(
+      GetRoutingID(), id, gfx::Size(), png));
+}
+
 }  // namespace content