Create ChromeWebView Framework.

ios/web_view/internal/cwv.mm

Index: ios/web_view/internal/cwv.mm
diff --git a/ios/web_view/internal/cwv.mm b/ios/web_view/internal/cwv.mm
index e24120c1a1985f14fbb336f437ad0236e121a6bb..697bdc709662d8cd5720c460d518518a1a98643d 100644
--- a/ios/web_view/internal/cwv.mm
+++ b/ios/web_view/internal/cwv.mm
@@ -8,6 +8,7 @@
 
 #include "base/location.h"
 #import "base/mac/bind_objc_block.h"
+#import "base/mac/bundle_locations.h"
 #include "base/memory/ptr_util.h"
 #include "base/single_thread_task_runner.h"
 #include "ios/web/public/app/web_main.h"
@@ -41,6 +42,7 @@ CWV* g_criwv = nil;
 @synthesize delegate = _delegate;
 
 + (void)configureWithDelegate:(id<CWVDelegate>)delegate {
+  base::mac::SetOverrideFrameworkBundle([NSBundle bundleForClass:[self class]]);

[sdefresne, 2017/03/14 09:16:34]

Why not putting this in WebViewWebMainParts::PreMainMessageLoopRun, just before
loading the web_view_resources.pak?

[michaeldo, 2017/03/14 15:34:23]

Excellent idea, I didn't know where the best place for this was, but it makes a
lot of sense there, so I've moved it.

   g_criwv = [[CWV alloc] initWithDelegate:delegate];
 }