Adds extension name to the screencast notification bar.

chrome/browser/ui/cocoa/media_picker/desktop_media_picker_controller.mm

 // Copyright 2013 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.
 
 #import "chrome/browser/ui/cocoa/media_picker/desktop_media_picker_controller.h"
 
 #include "base/bind.h"
 #import "base/mac/bundle_locations.h"
 #include "base/strings/sys_string_conversions.h"
 #import "chrome/browser/ui/cocoa/media_picker/desktop_media_picker_item.h"
@@ skipping 39 matching lines @@
 - (void)sharePressed:(id)sender;
 - (void)cancelPressed:(id)sender;
 
 @end
 
 @implementation DesktopMediaPickerController
 
 - (id)initWithMediaList:(scoped_ptr<DesktopMediaList>)media_list
                  parent:(NSWindow*)parent
                callback:(const DesktopMediaPicker::DoneCallback&)callback
-                appName:(const base::string16&)appName {
+                appName:(const base::string16&)appName
+             targetName:(const base::string16&)targetName {
   const NSUInteger kStyleMask =
       NSTitledWindowMask | NSClosableWindowMask | NSResizableWindowMask;
   base::scoped_nsobject<NSWindow> window(
       [[NSWindow alloc] initWithContentRect:ui::kWindowSizeDeterminedLater
                                   styleMask:kStyleMask
                                     backing:NSBackingStoreBuffered
                                       defer:NO]);
 
   if ((self = [super initWithWindow:window])) {
     [parent addChildWindow:window ordered:NSWindowAbove];
     [window setDelegate:self];
-    [self initializeContentsWithAppName:appName];
+    [self initializeContentsWithAppName:appName targetName:targetName];
     media_list_ = media_list.Pass();
     media_list_->SetViewDialogWindowId([window windowNumber]);
     doneCallback_ = callback;
     items_.reset([[NSMutableArray alloc] init]);
     bridge_.reset(new DesktopMediaPickerBridge(self));
   }
   return self;
 }
 
 - (void)dealloc {
   [sourceBrowser_ setDelegate:nil];
   [sourceBrowser_ setDataSource:nil];
   [super dealloc];
 }
 
-- (void)initializeContentsWithAppName:(const base::string16&)appName {
+- (void)initializeContentsWithAppName:(const base::string16&)appName
+                           targetName:(const base::string16&)targetName {
   // Use flipped coordinates to facilitate manual layout.
   const CGFloat kPaddedWidth = kInitialContentWidth - (kFramePadding * 2);
   base::scoped_nsobject<FlippedView> content(
       [[FlippedView alloc] initWithFrame:NSZeroRect]);
   [[self window] setContentView:content];
   NSPoint origin = NSMakePoint(kFramePadding, kFramePadding);
 
   // Set the dialog's title.
   NSString* titleText = l10n_util::GetNSStringF(
       IDS_DESKTOP_MEDIA_PICKER_TITLE, appName);
   [[self window] setTitle:titleText];
 
   // Set the dialog's description.
-  NSString* descriptionText = l10n_util::GetNSStringF(
-      IDS_DESKTOP_MEDIA_PICKER_TEXT, appName);
+  NSString* descriptionText;
+  if (appName == targetName) {
+    descriptionText = l10n_util::GetNSStringF(
+        IDS_DESKTOP_MEDIA_PICKER_TEXT, appName);
+  } else {
+    descriptionText = l10n_util::GetNSStringF(
+        IDS_DESKTOP_MEDIA_PICKER_TEXT_DELEGATED, appName, targetName);
+  }
   NSTextField* description = [self createTextFieldWithText:descriptionText
                                                 frameWidth:kPaddedWidth];
   [description setFrameOrigin:origin];
   [content addSubview:description];
   origin.y += NSHeight([description frame]) + kControlSpacing;
 
   // Create the image browser.
   sourceBrowser_.reset([[IKImageBrowserView alloc] initWithFrame:NSZeroRect]);
   NSUInteger cellStyle = IKCellsStyleShadowed | IKCellsStyleTitled;
   [sourceBrowser_ setDelegate:self];
@@ skipping 188 matching lines @@
 - (void)sourceThumbnailChangedAtIndex:(int)index {
   const DesktopMediaList::Source& source = media_list_->GetSource(index);
   NSImage* image = gfx::NSImageFromImageSkia(source.thumbnail);
 
   DesktopMediaPickerItem* item = [items_ objectAtIndex:index];
   [item setImageRepresentation:image];
   [sourceBrowser_ reloadData];
 }
 
 @end  // @interface DesktopMediaPickerController