Do not generate a microdump if there are no webview pointers on the stack.

components/crash/content/app/breakpad_linux.h

Index: components/crash/content/app/breakpad_linux.h
diff --git a/components/crash/content/app/breakpad_linux.h b/components/crash/content/app/breakpad_linux.h
index 3316fa0cbe6c146c601b8a3b869963d9c554b5e7..0d70a9dee760a1dbb6e7601b5b33cde8a1e210a0 100644
--- a/components/crash/content/app/breakpad_linux.h
+++ b/components/crash/content/app/breakpad_linux.h
@@ -31,6 +31,11 @@ extern void InitMicrodumpCrashHandlerIfNecessary(
 
 extern void AddGpuFingerprintToMicrodumpCrashHandler(
     const std::string& gpu_fingerprint);
+
+// Inform breakpad of the extent of the text section that is
+// considered interesting for the purpose of crashes so that this can
+// be used to elide crashes that do not reference interesting code.
+extern void SetNativeCodeTextAddrRange(uintptr_t start, uintptr_t end);
 #endif
 
 // Checks if crash reporting is enabled. Note that this is not the same as